This is something I find so disturbing, and I experience similar.

I feel extremely little of what I'm doing in my real, actual, job, helps me in advancing in my career. Unless maybe if I choose to stay at my current company until retirement lol.

Otherwise, why bother doing anything more than the bare minimum to get by at work? It would be a far better investment of time and effort to grind leetcode and practice for interviews, instead of going above and beyond to excel at my job. At least until I get into an "endgame company" where I feel it's worth staying long term.