I wrote a chrome headless framework that types using semi-realistic key presses (timing, mistakes, corrections) and does semi-realistic scrolling / swiping and clicking / tapping.

It's not very hard to get something that would be too hard for almost every website beside Google and Facebook to bother with. If it's a 1 on a 0-9 scale in difficulty, most websites just don't have the resources to detect it

It took me like ~3 hours to write it, but I guarantee it would take months for someone to detect it, and even then, they'd have a lot of false positives and negatives.