It's quite painful to create transaction paying less than 1 sat/vb, but I'm sure developers will start upgrading their clients.  BlueWallet says it's coming on the next release: https://x.com/bluewalletio/status/1945105660594544780.

MARA pool has also joined the party: https://mempool.space/block/00000000000000000000767b42452c3e2b6d13bba006f71a19011b77d451ba1f.

A non-empty mempool is undeniably a step forward.