I tried to solve this using Google/Bing but I could’t. Hope you can save me.
I have a Snap installed on my Ubuntu (teams) and today it is not available to install (just a teams-for-linux app but it is not the same).
How can I backup that and install it again after a format or on a new computer?
I tried snapshot export/import but it did not work (I think it just save the configutarion of snap apps and before importing I need to install (and I can’t install because it is not available anymore).
Teams has been discontinued by Microsoft as an individual app. It is now a progressive web app. To access it, you can do use any browser, but in my experience, it works better with chromium based browsers like: Chrome, Brave, Chromium, Edge etc.
The snap file lives in /var/lib/snapd/snaps … you can copy (do not use mv while the squashfs is mounted! Use cp) it somewhere to later install it with the --dangerous option again… though I assume Microsoft will eventually block its usage since they already removed it from the store…