Judging by Necrophile's impressions, there are no bugs in the game as such. Which means they have definitely been removed in the full version of Heroes. So they need to hone the balance as accurately as possible.

"No bugs" — that's a great way to put it :rolleyes: . The list on the official forum has already exceeded a hundred items. Of course, many of them are purely technical, but there are some that directly affect the balance. Among the most significant: 100% Necromancer skill, the chilling bones ability for undead works for ranged units as well, not just melee ones, improved spells do not work, and uncorporeal does not work for deaths and bone dragons.
As for the need to work on the balance — I support this with both hands! And I continue my activity in the corresponding section of the Nival forum — maybe they'll actually notice something..:)