"This isn't a simulator" aside, I was surprised to see that a tin can like the Sherman was given higher armour values than the late-war sloped armour of the T34-85. But then I remembered that HP has effectively no real world basis.
In fact, it's practically impossible to ever get a satisfying hit on a t34/85 in this game thanks to its high HP. You only ever knock off a few pixels unless it's a Pak 43.
The only armour change from 1943/44 T34s to T34-85s was thicker turrets up to 90mm. Hull armour was the same 45mm as the 1941 era T34's. (there were limited run factory up armour hull kits for the 76mm armed T34s but it was decided it'd be better to have the larger turret and 85mm gun than upgrading the hull armour)
Sherman's had thicker (always sloped) frontal Hull (54mm-108) and turret armour 76mm in the continuous upgrades that resulted in the M4A3E8 W 64-108mm front hull and 64mm overlaid with a 89mm mantlet.
Sherman had thicker armour on the front but thinner side armour. With the wet stowage upgrades it burned less after penetrations than T34's, PIV, and Panthers meaning less dead crew members.
Note that in Soviet service M4A2 were eventually concentrated in elite/proven formations such as 1st Guards Mechanized Corps, 3rd Guards Mechanized Corps, and 9th Guards Mechanized Corps. Not exactly indicative as being regarded as bottom of the barrel equipment for "penal" or "green" corps units.