[Linux] Is telling a user that flatpaks have been installed without actually installing them expected behavior?

[ForeverNooob]

Additional Info

• I am using Windows Subsystem for Linux

Output of brew config

HOMEBREW_VERSION: 6.0.19
ORIGIN: https://github.com/Homebrew/brew
HEAD: 0942cac2eda7648d4857f4e5da60f1de303b6818
Last commit: 19 hours ago
Branch: stable
Core tap: N/A
Core cask tap: N/A
HOMEBREW_PREFIX: /home/linuxbrew/.linuxbrew
HOMEBREW_NO_ANALYTICS: set
Homebrew Ruby: 4.0.6 => /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/vendor/portable-ruby/4.0.6/bin/ruby
CPU: single-core 64-bit skylake
Clang: 22.1.8
Git: 2.34.1 => /bin/git
Curl: 7.81.0 => /bin/curl
Kernel: Linux 5.15.0-190-generic x86_64 GNU/Linux
Landlock ABI: 1
OS: Ubuntu 22.04.5 LTS (jammy)
Host glibc: 2.35
Host libstdc++: 6.0.30
/usr/bin/gcc: N/A
/usr/bin/ruby: N/A
glibc: 2.39_1
gcc@13: N/A
gcc: 16.2.0
xorg: N/A

Output of brew doctor

# I know there's a bunch of issues, and some of them I'm ok with.
# I'm just not sure they're relevant to this discussion.

Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: Your system glibc 2.35 is too old.
We will need to automatically install a newer version.

We recommend updating to a newer version via your distribution's
package manager, upgrading your distribution to the latest version,
or changing distributions.

Warning: Landlock ABI 2 or later is required; found ABI 1.
Homebrew's Linux sandbox requires a kernel with Landlock enabled.
As a final workaround, disable the Linux sandbox:
  export HOMEBREW_NO_SANDBOX_LINUX=1

Warning: /usr/bin occurs before /home/linuxbrew/.linuxbrew/bin in your PATH.
This means that system-provided programs will be used instead of those
provided by Homebrew.

The following tools exist at both paths:
  addr2line
  ar
  as
  awk
  c++filt
  c_rehash
  captoinfo
  choom
  chrt
  clear
  cpio
  curl
  dbus-cleanup-sockets
  dbus-daemon
  dbus-monitor
  dbus-run-session
  dbus-send
  dbus-update-activation-environment
  dbus-uuidgen
  dirmngr
  dirmngr-client
  dmesg
  elfedit
  fallocate
  fincore
  findmnt
  flock
  fusermount3
  gapplication
  gawk
  gdbus
  getopt
  gio
  gio-querymodules
  glib-compile-schemas
  gpg
  gpg-agent
  gpg-connect-agent
  gpg-wks-server
  gpgconf
  gpgparsemail
  gpgsm
  gpgsplit
  gpgtar
  gpgv
  gprof
  gresource
  gsettings
  hardlink
  i386
  infocmp
  infotocap
  ionice
  ipcmk
  ipcrm
  ipcs
  kbxutil
  last
  lastb
  ld
  ld.bfd
  linux32
  linux64
  logger
  lsblk
  lscpu
  lsipc
  lslocks
  lslogins
  lsmem
  lsns
  lzcat
  lzcmp
  lzdiff
  lzegrep
  lzfgrep
  lzgrep
  lzless
  lzma
  lzmainfo
  lzmore
  mcookie
  mesg
  more
  mount
  mountpoint
  namei
  nm
  nsenter
  objcopy
  objdump
  openssl
  pinentry
  pinentry-curses
  prlimit
  pydoc3
  python3
  pzstd
  ranlib
  readelf
  renice
  reset
  rev
  script
  scriptlive
  scriptreplay
  setarch
  setsid
  setterm
  size
  strings
  strip
  tabs
  taskset
  tic
  tmux
  toe
  tput
  tset
  uclampset
  umount
  unlzma
  unshare
  unxz
  unzstd
  update-mime-database
  utmpdump
  wall
  watchgnupg
  wdctl
  whereis
  x86_64
  xauth
  xxd
  xz
  xzcat
  xzcmp
  xzdiff
  xzegrep
  xzfgrep
  xzgrep
  xzless
  xzmore
  zstd
  zstdcat
  zstdgrep
  zstdless
  zstdmt

Consider setting your PATH so that
/home/linuxbrew/.linuxbrew/bin occurs before /usr/bin. Here is a one-liner:
  echo 'export PATH="/home/linuxbrew/.linuxbrew/bin:$PATH"' >> ~/.profile

Warning: Homebrew's "sbin" was not found in your PATH but you have installed
formulae that put executables in /home/linuxbrew/.linuxbrew/sbin.

Consider setting your PATH for example like so:
  echo 'export PATH="/home/linuxbrew/.linuxbrew/sbin:$PATH"' >> ~/.profile
This is a Tier 2 configuration:
  https://docs.brew.sh/Support-Tiers#tier-2
You can report issues with Tier 2 configurations to Homebrew/* repositories!
  https://docs.brew.sh/Troubleshooting
Read the above document before opening any issues or PRs.

Description of issue

In summary, Homebrew tells me everything is installed... despite flatpak missing from the system.

$ export HOMEBREW_VERBOSE=1 HOMEBREW_DEBUG=1 ; time brew bundle --file=~/.config/homebrew/brewpak
==> Downloading Homebrew API data
/usr/bin/env /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/shims/shared/curl --disable --cookie /dev/null --globoff --user-agent Linuxbrew/6.0.19\ \(Linux\;\ x86_64\ Ubuntu\ 22.04.5\ LTS\)\ curl/7.81.0 --header Accept-Language:\ en --fail --silent --remote-time --output /home/ubv/.cache/Homebrew/api/internal/packages.x86_64_linux.jws.json --location --time-cond /home/ubv/.cache/Homebrew/api/internal/packages.x86_64_linux.jws.json --disable --cookie /dev/null --globoff --show-error --user-agent Linuxbrew/6.0.19\ \(Linux\;\ x86_64\ Ubuntu\ 22.04.5\ LTS\)\ curl/7.81.0 --header Accept-Language:\ en --fail --silent --compressed --speed-limit 100 --speed-time 5 --write-out \%\{stderr\}HTTP\ status:\ \%\{http_code\} https://formulae.brew.sh/api/internal/packages.x86_64_linux.jws.json
✔︎ JSON API packages.x86_64_linux.jws.json                                                                                                                                                                           Downloaded   15.6MB/ 15.6MB
Using <flatpak_name>
# Line above but repeated for a bunch of Flatpak apps.
`brew bundle` complete! 22 Brewfile dependencies now installed.

real    0m1.541s
user    0m1.088s
sys     0m0.245s


$ flatpak
-bash: flatpak: command not found

[p-linnane]

No, this is a bug. Thanks for reporting it. I have a proposed fix here: Homebrew/brew#23648.