I'm surprised that so much of the network (~87%) is still at 1 sat/vB, especially considering that we are seeing almost 40% of all transactions having a sub-1 sat/vB feerate.
I suppose the nofeefilter set nodes may also be relaying transactions, although I suspect they would be using the default of whatever client they are running. Core 29 I think is the only version that has a lower default than 1 sat/vB.
Reported minimum relay fees
4% of nodes having a more permissive policy leads to sub-1 sat/vB transactions being 40% of all transactions.
Footnotes