It's possible that Ethereum merge will be postpone more than once next year but they will eventually switch to proof of stake for the consensus, I already have a node participating in the PoS.
Forget it, the blockchains of the PoW coins we could mine with our GPUs compared to Ethereum blockchain are tiny tiny tiny. This is why I started to invest in PoS Ethereum nodes validator.
We still have probably half a year to make decisions. Video cards have paid for themselves long ago, but I will not stop investing in mining. I will buy new video cards that consume little power.
And I already wrote my arguments about POS mining. These are also certain risks.