Opera stable is still on Chromium 132, whereas actual Chromium is already on 134. Chrome, Edge, Brave and Vivaldi to my best knowledge are already as well. Is there a reason to be concerned or how does Opera handle security that comes with newer versions of Chromium?

@leocg Thank you for your comment. I'll look into this.

@leocg I also see this happening in my installation of Opera. I'm not sure if this really is something Chromium related, actually.
Third party cookies blocking works in Opera for Android e.g. as well as in Edge and Vivaldi with a more recent Chromium version, indeed.
I remember this to have happened with previous versions of Opera as well and being eventually fixed with an update. So I hope this will happen again with the jump to 118.