so when ETH 2.0 are launched ,projects from the Ethereum Ecosystem will have to choose whether to launch them on ETH2.0 or use bridges and switch to better blockchains, and I think that they will decide to switch to other blockchains, and we will see how projects such as Avalanche, Near Protocol, Solana, Polygon will start replenishing every day with new projects from the former Ethereum ecosystem
it was indeed the worst possible case. but I think if with ETH 2.0 the network can be cheaper and faster, then Dapps that are on the ethereum network will still choose to use erc20. there is no reason for them to switch to other networks when the main problem in ethereum can be solved with ETH 2.0. instead I think if eth 2.0 is not released soon the worst possibility could come true. dapps on the ethereum network will use the bridge and switch to a cheaper network.