Piano Forum

If you can successfully navigate the pieces you list with a solid relaxed technique (ie that doesn't predispose you to  tension or repetitive movement injury), I dont see why old Fred's Op. 53 warhorse would be any more difficult to learn with appropriate work /goal timelines.

1 etude can be plenty if you pick the right one and really stick with it to squeeze everything you can out of it. No harm in adding another or two along the way.

I'll take you to task on the preludes waltzes (and I'll add mazurkas).

Pick a cycle and learn them all,  my money says you'd probably improve more and develop a better music toolkit for determining expression and playing with details and nuance more so that living with a big old Chipotle Burrito 🌯 size of a piece for months /a year + on end.

But yes play away here's the thing w these big pieces that seem to be goals for many , just flipping try it if you stick it out for 6 months and you're not progressing or to decide to come back later , it's not like it's time wasted .
Ive yet to be less of a pianist or not be a better musician due to time with a difficult work regardless of if I "finished it " or not .

Also what's a  beginner advanced pianist ? Is that like with job listings for experienced entry level work ? Or is it like saying , that's a beginner surgeon? I kinda thought either to have the skill box or you don't ?