Every player should learn the 4 core arpeggios in all positions of the neck

Every player, even beginners should learn the 4 arpeggios: dom7, min7, maj7, min7b5. It’s painful to memorise them all but once you have them under your belt even your noodling becomes more productive as it further consolidates your learning and makes your improvisations so much more intentional so that for example lines over the V chord over a blues using V7 arpeggio you can intentionally make more consonant lines rather than the dissonant Vdom7#9b13 you get from playing the I minor pentatonic, even though it sounds good, arpeggios give you a vehicle to have more consonant lines when you need them