They will have explosive reactive armour, as well as whatever material has replaced the chobham armour (can’t remember).
They will also be less vulnerable to whatever handheld rocketery the Russians have - not ‘intelligent’ to explode above the turrets (weak spots) as seen on many vids.
One thing that’s not been seen so far in this recent war, is the advance of Ukrainian forces against an in depth prepared defence - mines, targeted artillery points etc.
I would fear for the advancement of Ukrainian tanks against Russian mines, except with recent past experience of Russian ability, it may be crapily applied and useless. We shall see as the spring thaw gives way to hardened ground and the (hopefully) inevitable Ukrainian push towards the Black Sea coast occurs.