The migration seem to be just the change in name. I don't find any difference prior to being MATIC or now POL. They do provide some technical jargon but the real experience is not much different. The fees are are similar or more than other L2s and there's not much new things happening on the network. It's also a matter of hype but also of the technology involved that increases the speed and decreases the price. The hype war is being led by TON while technologically newer L2 like zksync, manta, Injective EVM seem to impress me.
Yep, due to mini-apps TON is now on the hype train, and I agree, there may be many jargon about what was done on the POL, but as I've seen on this thread, experience didn't change - that - much to the point that it was worth it to do the rebrand.
Only time will tell how it will go.