Yeah, that's the only below 1 sat/vByte representation of transactions I have seen. I have never stopped to inspect how accurate it is so I am just going to assume that it's the best one we have currently.
Now we need to convince the wallet providers to make those changes according to the new fee rate adjustments because I still see it's not possible to set the few below 1sat/vb on any wallet that I am using.
Electrum server operators should be able to do this with a simple settings change. That would already help significantly if we take into account how popular the wallet is.
If you are using Trezor and Trezor Suite, then you can create and sign your transaction using the software and broadcast the raw transaction on mempool.space.
Bitcoin Core can be set up accordingly as well.