I bought a lot of really nice stuff from both places (and some shitty stuff, but most of the time because I “saved” some time by not reading reviews), and they’re basically same, Temu is just Aliexpress, but little bit more expensive and with warehouses in EU. So I just pay a bit more if I need stuff in a few days, not in few weeks.
In many cases, temu stuff is probably just Ali stuff from resellers.
Anyway, no idea how you find temu and Ali any different