Hot take: I figured proofing baskets were a gimmick until my dough stopped spreading flat on the sheet
Third loaf this week finally held a tall round shape instead of pancake-ing out, so now I'm curious if a plain colander with a floured towel does the same job before I buy another one.
Three loaves in one week proves nothing except you changed three things at once and got lucky on the fourth try. A colander with a floured towel is not the same job, the towel bunches up and the weave lets the dough slump in weird spots, and half the people who swear by the colander hack are really just getting better at shaping. Your tall round loaf probably came from tighter tension on the counter, not the basket catching it. Buy the basket or don't, but test it right, same dough, same shaping, one in the colander and one on the sheet. Betting you get two pancakes and blame the towel.