Yup my enthusiasm is waning a lot, conversely Project cars 3 which initially disapointed me as I'm more a hardcore simmer could fill the void nicely with a mix of sim/simcade (god I hate that term tho!!).
We'll always have Project Cars 2
If you're looking for a nice a nice sim/arcade mix, leaning more into sim, Forza Horizon 4 is pretty nice, tons of highly customizable cars, from regular everyday cars to exotic, and a huge free roaming map.
The only downside is that during free roam you need to drive on the left lane, unless you're from UK in that case it's a plus.