We love to praise linux constantly and tell everyone to change to it (they should) but what are your biggest annoyances ?
Mine would be, installing software (made even more complex by flatpaks being added, among the 5 other ways there already were to install software) and probably wifi power management issues.
Same for my system which is also a mix of deb, flatpak and Snap.
The main complain of flatpak being size and performance in comparison to ‘native’ installations.