I wouldn't advocate for a change of Bitcoin 21 million cap, that will destebelize everything that Bitcoin stands for, it will mean that it's original finite supply that has made it to stand out will become altered. I will rather have the amount of Bitcoin that will be in circulation in the future to be lower than 21 million...
The originally foreseen supply should neither increase nor decrease. Instead, it should remain as it is. There is no reason to abandon the number 21 million. Instead, the developers should think about L1 scaling, so we don't end up in situations with fees going up to several hundreds of sat/vByte as was the case with Runes and Ordinals. A lot has happened since 2009. Computer technology has developed and become more accessible and cheaper, and Bitcoin should move with the times if it is to ever become a serious competitor on the big stage.