I doubt it. The logistics just doesn’t really work out. You can go over uneven terrain with a tank and you can probably pack a much bigger gun on a tank than on a mech, seeing as you have better support (treads instead of 2-4 feet).

Also, tanks are sturdy with thick armor with minimal weak spots. A mech with legs is an invitation for an attack. Disable one leg and the mech is not longer a threat, and again, limited weight on those legs means limited armor.

Also, I very much doubt you’d have a human sitting on the inside. Why would you? The human takes up space and could just as easily sit remotely and control the mech wirelessly, like how drones are piloted. Or even better, make the mech autonomous. If we have mech technology, we probably have that technology too.

So yea, nah. It’s a rule of cool thing, not an actual realistic thing I would say.