Michael McIntyre has a pretty decent following in the UK. His big Saturday night show was filmed in large theatres like the London Palladium and featured various bits like "Text All" where he took a celebrity guest's phone and sent a bizarre message (designed to elicit a response) from all that celeb's celebrity friends. He also snuck into people's homes in the middle of the night, creeping up the stairs with the collusion of a partner to host "Midnight Gameshow" in their bedroom. You can find all this on YouTube I've no doubt.
That all stopped for the pandemic and The Wheel seems to avoid many issues with everyone naturally distanced.
To be honest, the show is pretty popular in the UK, although it's a function of the guests they have on. The contestants seem to have been screened so that nobody who might be good on a proper quiz show like Jeopardy is on it. It's not a gameshow for smart people! This is closer to Price is Right territory - and that may be being unfair to that show's contestants!
McIntyre is popular, filling arenas for his stand-up tours with a very mainstream sense of humour. He's in no way edgy - see also Peter Kay who's bizarrely popular in a similar vein. I'm pretty sure that most of McIntyre's TV work is really to ensure that he can continue to fill those very profitable arenas (the profit for a stand-up compared with a band filling the same venue for often similar amounts must be vastly bigger).
Personally I can very much leave him, although his TV show "bits" are good. The Wheel is not great, and without most US viewers being aware of who he is, I'm not sure how it'll work.
Incidentally, the big hit new format in the UK right now is a remake of a Dutch format called The Traitors. I've not watched it, but it's doing enormously well. I see a US version is coming to Peacock in January. That feels like the wrong venue to me - NBC would have been a better bet. Stripping it across a few weeks and getting people talking about it is the way to go.
Adam