Help! Huge Drop in Google Image Search Traffic!!

Can anyone help me validate this?

On my squarespace site I'm seeing a huge drop in Google Image Search Impressions and traffic (approximately 75% decrease) 

This wasn't a gradual decline, it basically happened over night. Some of my top pages have stopped ranking completely.

Squarespace, in their classic "not my problem" way have asked me to contact google (?!?!)

Please can anyone help by also sharing their Search Console (Image) view?

I'd like to see if this is unique to my website.

Thanks!

Looks like you got hit by the Core Web Vitals update.
But to verify I would look at who started outranking you and see if they indeed have a faster website.
In your Search Console, what are your Page Experience numbers?