The exact same kind of issue happened earlier this year with Mozilla trying to work on a fix (https://techissuestoday.com/firefox-users-locked-out-of-f1tv-mozilla-engineer-confirms-a-fix-is-coming/). Their fix was working until today.
When something breaks twice in such a short window, it’s hard to believe in coincidences. I’m not claiming anything deliberate, but the pattern makes me question whether Google’s involvement in F1 might be affecting which browsers get proper support, even indirectly.