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.
This is probably the biggest barrier to mainstream linux adoption - devs have to choose between supporting 5+ package formats or just say “screw it” and make a windows/mac app instead.