Su-85 can deal with PzIV just fine so can Su-76.
ITs still less effective against it then it used to be - that is his whole point.
M36 kill PzIV faster since it over-killed
Lone M36 sure, M36 with any kind of support takes longer - 1 AT nade meant P4 will go down in 3 shots, now it still takes 4.
FF can still kill with 2 shots 2 tullips.
It was not able to do it without tulips before due to shooting once every full moon, it got a buff which it badly needed as it was worst TD in the whole game with lowest DPS by far and still is - muni heavy tulips is pretty much the only thing that made it viable pre buff and as long as you move, you're perfectly safe from tulips.