I love soccer, so I’ve certainly enjoyed watching German, Italian and especially English games. I’ve found the piped in crowd noise helps me suspend my disbelief, and adds to the enjoyment of the games. It will be so nice when the fans return, though.
I’ve enjoyed racing (Formula One and IndyCar) just as much as when there’s a crowd, especially the Formula One. IndyCar has had small crowds allowed recently, but crowds don’t make much difference to me when watching motor sports. Maybe it’s more noticeable at ovals?
Golf has been just as enjoyable to me without the crowds, but of course it would be nice to have the galleries roaring and cheering.