> Just do what's easiest for you, I say this respectfully it is not worth your time agonizing over a feedback form
I agree, it's not worth agonizing over the form before every single project. But I've done a few projects with feedback forms and I realised I can't answer what's the easiest way to do it, and it annoyed me. I'm glad I posted this question because I discovered much simpler solutions.
> when there are times I really want to give feedback I'll look for a contact email and just send it straight there
I wouldn't choose showing my contact email, it'll get spammed for eternity.