Slide to unlock to avoid spam

Question

I've searched but it seems a new question.

My personal website is a simple html page with a contact form.

I have reCAPTCHA before submit to a lambda function, but I still receive 5/8 spam contacts per day and it is really annoying.

I've read suggestion about hidden fields and simple questions (I'm going with those if this is only a bad idea), but: what about a IOS style "Slide to submit" instead of the classic submit button?

Maybe the bots are not able to handle that..? Do you already know that this is a bad idea?

I don't care too much about users with js disabled, I already let them know that they need js to submit..

Thanks if you have an answer!