with-emacs.sh VS burly.el

Well, this is impossible to test if you don't say on what version of Emacs you're experiencing this. You could test if it is your configuration by using the lovely with-emacs script to sandbox.

Check out https://github.com/alphapapa/with-emacs.sh

FWIW, I would generally recommend using with-emacs.sh rather than chemacs2, because it's much simpler to use: https://github.com/alphapapa/with-emacs.sh

Whenever you encounter weird behavior, you should try to reproduce it in a clean Emacs config. This script makes that easy: https://github.com/alphapapa/with-emacs.sh

Not to poach, but you might try this alternative: https://github.com/alphapapa/with-emacs.sh

Wow, finally! And just when I've gotten the bugs ironed out of with-emacs.sh and makem.sh related to Emacs 28's changes. Well, pre-29 versions will still be around for a long time, so with-emacs.sh will remain useful, but it will be nice to have support for this integrated into Emacs.

Sure, but you don't have to throw away your old, comfortable, known-good config to try a new one. Use with-emacs.sh to run as many Emacs configs as you like.

And about 20 minutes later (native comp with full AOT takes a while), I could just run emacs-28.0.60 (or with my script, with-emacs.sh -e emacs-28.0.60 -d ~/src/emacs/configs/ap.el).

burly.el by u/alphapapa - might be an easier way to approach the current-window-configuration/set-window-configuration that Sacha has implemented

For the "lauch workspaces", I use burly which just uses simple bookmarks. Then with consult, I just use C-x b, then m to narrow to bookmarks and I have all the workspaces available (remote as well).

Well, that is essentially what Burly does: https://github.com/alphapapa/burly.el

Install https://github.com/alphapapa/burly.el

These features are especially useful with Burly: https://github.com/alphapapa/burly.el Because Burly can save and restore those kinds of windows, so you need not recreate them manually.

How does it compare to packages like burly, which (to my understanding) provide similar features?

I'm not sure exactly what you're looking for, but take a look at this: https://github.com/alphapapa/burly.el

I think you want "window configurations", which can be saved into registers. You might try tab-bar-mode for cycling through them. Or there's also https://github.com/alphapapa/burly.el/ . (I'd like something similar but haven't found something that matches what I want)

desktop is not a great solution for restoring buffers, because it generally only works for file-backed buffers. Instead, I wrote Burly to restore buffers, windows, and frames in mode-specific ways, on-demand using Emacs bookmarks. This is much more flexible and powerful than similar functionality in desktop.