When London is live on testnets, I think we should try and do a stress test where we fill ~100 blocks on the network with transactions to see how clients (and potentially infrastructure) can handle this. In order to have people monitor things, it may make sense to schedule this in advance so the time is known.

@MariusVanDerWijden and @matkt have done such stress tests on Calaveras, so I assume the tooling could be re-used given sufficient ETH. I have >1M ETH on Ropsten + Goerli, which should suffice for a few rounds of 100 block tests across each network.