My problem is with snapd. When I connect my pc to my mobile hotspot, my pc downloads lots of data. I downloaded nethogs and I saw usr/lib/snapd/snapd downloads sometimes with mb/s.
I thought this could be resolved with an update, but the "Software Updater" application doesn't help.
I tried to disable "automatically check for updates" in 'Software & Updates' but that doesn't help either.
I found sudo systemctl stop snapd.service command and after running it, /usr/lib/snapd/snapd is missing from nethogs (not downloading anything) but after ~1-2 min, it starts downloading again.
How can I stop that download?
I was having the same problem in Ubuntu 20. Stopping snap service got the job done. Read this instructions, it worked for me. How to stop snapd from auto-updating?
I was experiencing the same issue on Ubuntu 20.04 LTS, I tried everything even " systemctl mask ".. It worked but the solution was temporary when you unmask the program, it starts consuming bandwidth again. Solution was simple, just uninstall snapd and reinstall. This really bothered me as I don't have a fixed internet connection.
TLDR; Uninstall then reinstall snapd with apt command.