There are plenty of competitors for them especially BSC and even if ETH regains their old power, i am not sure how many projects will be using the ETH network as there are plenty of options available right now
Yes, many options can be chosen by developers right now, it is the advantage of many competitors of the ETH network. We don't rely on ETH network only today, we can choose some networks or chains to be used. You must be aware that most new projects are using BSC network right now, some of them use a polygon network. I think it is a new step for an era of multi networks in crypto.