@gmiazga Restarted opera and it worked. message gone on most pages and opera://browserjs. shows:

Today Opera Desktop August 23, 2022. Active patches: 21

@leocg nope, i install updates as soon as I see them, and this actually started after I installed an update recently.

here's the version information from the about page:
Version:90.0.4480.54 (x86_64)
Opera is up to date
Update stream:Stable
System:macOS Version 12.3.1 (Build 21E258) 12.3.1 x86_64

is that not the most recent version?

@leocg
browser.js is active.
NOTE: Any change will apply only to pages loaded after making the change.
Disable browser.js and User-Agent spoofing for the current session
Today Opera OPRDesktop 28.0 core 1750.0, May 25, 2022. Active patches: 21

So, same.

@gmiazga I agree that would make sense, but I am just copy/pasting what is showing up in my browser currently

here's the version information from the about page:
Version:90.0.4480.54 (x86_64)
Opera is up to date
Update stream:Stable
System:macOS Version 12.3.1 (Build 21E258) 12.3.1 x86_64

confirmed here too. Same message:
Today Opera OPRDesktop 28.0 core 1750.0, May 25, 2022. Active patches: 21