In part due to Spectre and Meltdown, in general starting prior to their being revealed out of paranoia I think is entirely justified, I do financial transaction

In part due to Spectre and Meltdown, in general starting prior to their being revealed out of paranoia I think is entirely justified, I do financial transactions in a separate browser instance, which is started for each site and exited after finishing, and runs no extensions like ad blockers. I don't get see ReCaptcha while doing this, so if running an ad blocker or other defensive extensions are the cause of your problem you might want to try it.