Also, switching from a PoW system, might stabilize the price, as BTC is seen as an environmental destroying coin, which is somehow true.

a pity that you still seem to not have understood Bitcoin. Proof-of-work is one of the main reason why Bitcoin is Bitcoin, why it is something new and completely different than the old system and new "crypto" BS scams. PoW is true decentralisation and makes Bitcoin truly permissionless. PoS on the other hand is broken, insecure and leads to centralization or failure or both - centralization being a sub-type of failure.
I might not convince a true shitcoiner but if even one reader questions that "destroying the environment" FUD lie, my comment was already worth it.