I’ve been having issues installing some programs on Linux Mint 20.1. Lately many errors trying to install QB64 V2.0. So a few days ago I upgraded Linux Mint 20.1 to 20.2. Didn’t help. So today I fresh installed Linux Mint 20.2 and QB64 installed with no problems. I must say I’ve had more problems with Mint 20.1 than any Mint that I can remember. Perhaps it’s really an Ubuntu problem which Mint is based on? DistroTube YouTube channel just said the latest Ubuntu is the worst he’s seem in years.
Linux Mint failed to add OpenSuse to Grub. os-prober also doesn’t report Tumbleweed. So as of right now it is unavailable.