TLDR; I spent nearly two hours troubleshooting my broken system, because I installed a Windows spell checker for my LibreOffice.
- Install the .oxt file for your Linux LibreOffice installation
- Don’t realize it was for Windows only
- Freeze your system completely for 15 seconds, after which it’s business as normal
- LibreOffice works okay, so don’t notice anything else
- Install additional spellers from Synaptic because the first one didn’t work
- Realize Linux Mint Software Center GUI is broken and most of the flatpacks aren’t displayed
- Perform two system resets using Timeshift, nothing changed
- Realize the speller you installed was Windows-only, purge all LibreOffice components, problem solved
- Also realize you had to install a system package version of LibreOffice (instead of Flatpack) for the speller from Synaptic to work
- Feel like a noob
🫣
as a fellow beginner, good on you for eventually solving the problem!
Thank you, I’m pretty proud of myself as well. I was already prepared to re-install from scratch, because I have backups in place. I still can’t understand why a tiny programme completely borked Software Center, but apparently Windows and Linux don’t mix at all, unless you use Wine.