On other devices this is true, but on my macbook air I keep having issues where I either have to wait for several seconds (10-20) at a black screen with a blink

On other devices this is true, but on my macbook air I keep having issues where I either have to wait for several seconds (10-20) at a black screen with a blinking underscore or that the options in the boot menu don't correspond with what gets booted. (mind you, I have been using ubuntu for at least 7 years now but the macbook air is the only device I couldn't install it reliably, guess it's even worse then using Windows on mac hardware :))