All is solved now (yours in the solution actually). I was just coming here to document the solution. After running the following commands:
sudo pacman -Syy
sudo pacman-key --refresh-keys
sudo pacman-key --populate archlinux manjaro
sudo pacman -Sc
which was listed in the pacman troubleshooting Wiki that @kisun posted earlier (similar to the ones you suggested).
- I updated all the file systems (not the applications)
- Restarted the PC
- Updated the kernel and installed an LTS version (just in case)
- Then updated the applications
I’ll now go make a Timeshift snapshot so that I don’t go through all this again.
Thanks everyone! @kisun @ishaan2479 @Shirshendu Happy holidays!