How to prevent Contact Form fake e-mailing

Question

I have a contact form in my portfolio website, here -https://twitter.com/Kartikth40/status/1663477835691081733?t=HRG72p4T7ue1JyZ1y3DsiA&s=19

But recently I am getting some useless and abusive mails under the fake emails.

So is there any way of preventing this fake e-mailing ?

I know I can verify user's emails or even make them login but that will hinder their experience.