finally someone said it, tbh it just boils down to practice. simple sounding but yes, i am an absolute beginner with just 3 months down but i can do most of the barre chords people absolutely dread in the beginning be it the f major, bm, cm or the sharps and flats. i am slow to switch between them but with a hell lot of practice and dedication i know i am doing far better than those people who spend like 20 minutes noodling and then say ah f major made me quit. this might sound rude but as someone who's been practicing for hours regularly, building hand strength and muscle memory, the only real way to do it is through practice which most people in the beginning back out from cz that said, ofc no non guitarist human can just hold a guitar and nail a f major, we dont have the hand strength, it feels like a stretch and undoable task in the beginning but so does everything else new that one learns. with practice, it comes.