Vivaldi 6.4.3160.47 (Stable channel) (64-bit)
OS Windows 11 Version 22H2 (Build 22621.2715)
I'm guessing this is not intended with one result search. Clicking the arrow for the menu results in this:
I would try to reinstall your Mac OS. Backup the things you want to keep on an external drive, google drive, backblaze or some other kind of medium. There are plenty of options.
Then follow this guide https://support.apple.com/en-us/HT204904 (follow the INTEL processor steps).