Yeah there are lots of new streamers coming from film/TV/comedy backgrounds and finding their income on Twitch, and these guys tend to avoid webcams and go for DSLR's via HDMI, sometimes with multi-camera setups too, and some quite like to play older console games casually, usually they're Sony A7ii's or Canon 5D/7D kinda models, but generally also with lenses that cost several times more than the camera.
Apparently comedians jumping to Twitch is a particularly common thing for the UK compared to other regions though, but something like 70% of comedy clubs will vanish from bankruptcy by the time they can re-open and filming has been limited so makes sense(Limmy, Iain Lee, Bilal Zafar, James Buckley, some UK examples).