Tbf most of my layer toggles are happening with a thumb, which isn’t possible on a normal keyboars because they give you a 10x wide key for your most flexible digit, and no other keys in reach.
I recommend a keyboard with at least 3 keys in the thumb cluster. Once you figure out what you like and get used to it, it’s like a superpower
Dvorak was designed a long time ago for typewriters, i.e. it tries to alternate hand movements, which some people like but many find it makes them slower.
Colemak is meant to be closer to qwerty and was designed for computer keyboards.
Then again I’m sure Dvorak is already miles better than qwerty and the differencesneith Colemak are minor. I think the reason I chose it originally was because of some youtube video but I don’t remember what it was called.
Also I really like the Colemal DH mod.