2021 Front Seats Uncomfortable

I recently purchased a 2021 ES 300H. Coming from 2015 ES 300H I found the drivers seat to feel like I was sitting on a board. I have back issues, so the hard seat is causing me pain. I thought the seat just needed breaking in, but I found out that they do not. I probably should of just taken the car back, but did not. Am I the only one that feels the seats uncomfortable. I talked to Lexus and they said they had no complains, but after being on the Lexus forum I found out that there are quite a lot of the then. For those that do have this problem, what have you done? Has Lexus corrected the seats or replaced them with better padding? I bought a seat cushion on Amazon, but find that uncomfortable. So many to choose from, but cannot buy them all. Any suggestions there?