I'll take solo content from someone's OF over any overly-produced studio solo scene. But at the same time even the OF accounts that are basically just studio proxies with cameramen and lighting equipment still are awful are capturing sex scenes, probably on purpose in order to preserve an amateur feel.
Also I think the traditional camwh*re sites like Chaturbate and Cam4 were rly scared of OF at first; IIRC I think they didnt allow performers to link their OnlyFans? (Might be making that up but I swear it used to be the case). But they had to catch up with the times and I think they're better off for it. OF still might kill off Chaturbate one day but as for now it's still doing alright.