snap only lists 2 versions per app, but did NOT delete the actual snaps

Question

My /var is full because the old snaps are not being deleted.

1. As a stopgap, can I just manually delete all but the two most recent snaps?
2. How can I make the old snaps be automatically deleted like I think they are supposed to be?
   (note that when I copy/pasted the output from the terminal commands, it ran everything together, I had to add extra carriage returns to separate the lines)

careyschug@OptiPlex-7050:~$ snap list --all
Name                        Version                     Rev    Tracking         Publisher        Notes
audacity                    3.1.3                       1051   latest/stable    lucyllewy✪       -
bare                        1.0                         5      latest/stable    canonical✓       base
blue-recorder               0+git.77ab1d6               126    latest/stable    xlmnxp           -
brave                       1.61.116                    331    latest/stable    brave✓           disabled
brave                       1.62.153                    335    latest/stable    brave✓           -
chromium                    120.0.6099.216              2729   latest/stable    canonical✓       disabled
chromium                    121.0.6167.85               2738   latest/stable    canonical✓       -
chromium-ffmpeg             0.1                         34     latest/stable    canonical✓       disabled

carey@OptiPlex-7050:/var/lib/snapd/snaps$ ls -al
total 12390516
drwxr-xr-x  3 root root      4096 Feb  3 21:20 .
drwxr-xr-x 23 root root      4096 Feb  3 21:24 ..
-rw-------  2 root root 261177344 Dec  2  2022 audacity_1051.snap
-rw-------  1 root root      4096 Aug  9  2022 bare_5.snap
-rw-------  2 root root 152416256 Dec  2  2022 blue-recorder_126.snap
-rw-------  1 root root 161738752 May 17  2023 brave_234.snap
-rw-------  1 root root 161374208 Jun 14  2023 brave_242.snap
-rw-------  1 root root 163106816 Jul  7  2023 brave_246.snap
-rw-------  1 root root 164630528 Jul 21  2023 brave_250.snap
-rw-------  1 root root 164634624 Jul 26  2023 brave_252.snap
-rw-------  1 root root 162439168 Aug  4  2023 brave_256.snap
-rw-------  1 root root 165072896 Aug 24 07:11 brave_262.snap
-rw-------  1 root root 165101568 Sep 12 10:12 brave_272.snap
-rw-------  1 root root 166170624 Sep 20 11:21 brave_279.snap
-rw-------  1 root root 166178816 Sep 22 10:32 brave_281.snap
-rw-------  1 root root 166842368 Nov  2 06:05 brave_297.snap
-rw-------  1 root root 167243776 Nov  8 03:05 brave_299.snap
-rw-------  1 root root 167202816 Dec  6 14:18 brave_318.snap
-rw-------  1 root root 170098688 Dec  7 10:23 brave_321.snap
-rw-------  1 root root 170168320 Dec 21 07:16 brave_325.snap
-rw-------  1 root root 170192896 Jan 10 11:27 brave_329.snap
-rw-------  1 root root 170188800 Jan 14 03:51 brave_331.snap
-rw-------  1 root root 170192896 Jan 25 09:11 brave_333.snap
-rw-------  1 root root 173035520 Jan 31 07:25 brave_335.snap
-rw-------  1 root root 173109248 Feb  3 21:20 brave_338.snap
-rw-------  1 root root 159129600 Sep 19 09:51 chromium_2623.snap
-rw-------  1 root root 165093376 Nov  9 00:05 chromium_2680.snap
-rw-------  1 root root 165117952 Nov 16 01:15 chromium_2686.snap
-rw-------  1 root root 165117952 Dec  7 13:18 chromium_2704.snap
-rw-------  1 root root 166608896 Jan  4 01:26 chromium_2719.snap

Answer 1

To remove Snaps using a GUI application, install Stacer from Ubuntu Software.

There is an uninstaller option in the app which will list all your Snap Packages and you can individually select the ones you wish to remove after which you will be asked to input your password for authentication and the packages selected will be removed.

The application has many other features too which I find extremely useful and simple to use.