As funny as it would be to see your dear chuuba scream and die immediately to a couple of zombies, it's really nice to see some degree of competence in the games they love and even be capable of giving gameplay tips to their viewerbase.
Hard agree, someone failing through a game (and not improving) can be endearing for a while, but learned competence carries a series for a long time.
One of the first things i think of as an example is Achievement Hunter / Roosterteeth.
I know there's some overlap between their thread and this one occasionally, but the thing that really stuck with me is them saying something along the lines of "We don't want to be good at games we want to be entertaining".
Regardless of the fact that they achieve neither nowadays, atleast for me their most entertaining series were always the ones that required competence and had a set goal, which they've moved away from since (like Gta criminal masterminds or their skyfactory series).
I hate the mindset that a creator can only either be competent
or entertaining and not both, because while not everyone is good at the same type of games, the willingness to understand and engage with the gameplay mechanics should be basic requirement on which you can start to build entertaining content.
This is the thing that ultimately drove me away from AH's content but something that I haven't noticed in the vtubers i watch.
Sure, they aren't amazing at most games (which is why the PZ stream or Gura's rythm game streams will be memorable), but they are mostly willing to learn and also don't display the unwatchable incompetence achievementhunter sometimes puts out.