@eobelgin The advice I was given was to ensure that the version of OS was minimum 12 or above. I'm running Ventura (13). The whole of this thread is basically all of the steps that were taken to resolve this - but I did eventually get an email from Opera support admitting that there has been an issue at their end, so my settings - and actions weren't at fault.
Probably best to submit a support ticket with them to send them your settings and let them ascertain where the fault lies and let them know this is a wider issue. All the best