Have you looked much into budgies' diets? I recently started switching mine over to pellets as their main diet and offering chop in the mornings. The finches love the chop, but Max and Sammy aren't so taken with it. They'll still eat it, though.
I think they do but they do seem to use/like that one a lot too so idk. And yeah, I’m not sure why they’re not using them anymoremaybe they’re just bored? And thanks! That makes sense! I feel bad now hahah although he seems to think of it as just another toy rather than an obsession, maybe because he has a friend? Idk.