I can see a good discrepancy between:
> People who believe they are putting in enough effort
> People who believe they're not trying hard enough
> And people who don't feel so sure about affirming either one, or the other
In my opinion... I think it's more of a mix of the three. They are trying to expand Holostars more, something I notice seeing that 1st Gen is planned to collab more often. At the same time, Oga replaying old games often, Roberu and his frequent collabs outside of Holostars, Rio trying to be the one who does the most collabs outside of Holostars, Fuma and his more classic Rap style...
That said, I feel that some members are very much in a comfort zone with their small and dedicated fanbase and have no plans, at least for now, to try to expand that. That's a bit what I observe in Miyabi, Temma, Shien... Miyabi could be putting more effort into the niche of MMOs and RPGs, Temma could try more roleplay with the whole knight thing and the Dark Knight counterpart... And Shien could come back with his Theater, or try to do more Voice Acting situations in stream; maybe a dynamic stream where he unrolls a scene using randomly chosen chat suggestions?
As for Astel, Gamma, Uyu and the rest... I find it hard to say for sure. Gamma is certainly ambitious, he himself said that his goal is to be the biggest male vtuber in the world during his debut and, at least for now, he seems to be doing well... At least a dedicated fanbase that loves to throw supas at him, he has, besides being charismatic. Uyu I feel is going on a more Arupapa route of streaming several things and several different ones at that, but also trying to pull in a bit of Astel and his Astelleda hell experience from Resistance Streams; he needs to find a good niche for himself, ironically, he is a zatsudan monster like Roberu, but doesn't really seem to be making use of it... Let's see when he does collabs, if he does, outside of Holostars