Are guitar thumb picks good?
The thumb pick easily allows you play chords (clawhammer style), which will provide you with a clean, controlled sound that is especially clear on octaves. You can use your fingers to pick difficult strings while you're playing a solo, instead of having to learn a unique picking technique.
Can you use a thumb pick for guitar?
A thumb pick isn't very different from your usual guitar pick. However, you can wear thumb picks on your thumb like a ring. Thumb picks are perfect for those who are used to strumming or plucking with just their thumb. Acoustic guitarists are the ones who usually do this kind of plucking or strumming.
Can you strum with a thumb pick?
In general a thumb pick does not allow you to change the angle of how you strum against the strings as you can do with a flat pick or plectrum. I am mostly a fingerstyle player, but when I really want to strum, I mostly use a flat pick.