My work/test PC has a tilling window DE i3/sway, keyboard is really powerful in TE desktop evn.
yeah I am familiar with it I used PopOS on my system76 for a while, but switched to Manjaro gnome, the gnome extentions new app and the regular setup offer about the same amount of keyboard navigation setup as the PopShell. my main reason to switch to manjaro was AUR (arc user repository) + flatpak + snaps + appimages all 4 by default, yeah you get all 3 on PopOS maybe, but not the AUR.
Regards, Alex