Some games don’t really use it in a meaningful way, others make it a key component of gameplay. Sometimes gimmicky, obviously. For example I tried Mario Galaxy on the Deck, there’s a puzzle that requires finding the right spot with the HD rumble. The Deck has the same kind of haptics, but it didn’t translate at all into something meaningful, so that one puzzle cannot be solved. Old school rumble is ok and nice, but modern devices (Steam Deck, Switch, PS5, something like last 10 years of iPhones, obviously the Steam Controller) have proper haptics and can really do weird things. Click on the trackpad of your Deck when it’s off. The click is faked with haptics, so there’s none when it’s off! Main problem is that both Microsoft and Nintendo are strikingly dumb, so Microsoft is still clinging to 30 year old tech with the classic rumble, and Nintendo has HD Rumble only on the real Switch… so developers can’t expect everything to have proper haptics, and fall back to rumble.