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 similar on mac and windows. Some software is available in the built-in package management (aka store). Some are installed from msi or dmg files. Some are portable executables. Some are PWA. Some are via command line utilities like homebrew and chocolatey.
No workstation OS has every possible option in one place.