Safe to update to PHP 8?

Hello! I use the free version of Catch Vogue. My web host sent me an email asking me to update to PHP 8, but it said to make sure to update my WordPress version and confirm that my theme was compatible first. I made sure my WordPress version was up to date (5.9.2) but I can't figure out how to confirm if Catch Vogue is compatible with PHP 8 or not. Is it compatible, and therefore safe to upgrade? Thanks!