Ther was no point in any of their heavy tanks including Panther which by allied standards was a heavy tank.
Yes the Tiger may have been invulnerable from the front but when you never have more than 30-40 operational Tigers along a +1,000 miles front, they become useless... even resource liabilities in the larger scheme of the conflict.
Dunno.
The Mark IV was getting a little long in the tooth and the Mark III was obsolete for anything but an assault gun chassis.
A simplified Panther and Jagdpanther might have been a good idea.
Problem was, the Panther the Germans built was larded up (which started out as a German T-34...) with gizmos inleaved road wheels and they couldn’t build them fast enough.
Tigers, though, were a waste of production lines and steel.