Maybe you are right that no other chain can claim to have so many dev groups working on, but still, where is this crazy progress you are talking about?
I see no changes and no news or information about some major progress or updates in the Ethereum network.
There are a lot of talks about sharding and the future, but this still looks very far away and nobody is brave enough to give any estimated dates.
Other chains don't have so many devs, but for sure they don't sleep, just look at BNB and how fast their chain grows with new projects, this is insane and reminds me Ethereum at the start.
We need to see some updates soon in the Ethereum network because many new projects choose other new chains to work with and build on.