But won't it lead to frustration of unconfirmed transaction? Because lmost all nodes have 1 sat/vbyte and that is how it is in their default settings. If someone wants to make less than 1 sat/vbyte as the fee, nodes will reject it but if there is a node that accepts it, it can lead to longer wait before confirmation if the transaction is not dropped out of memory pool, but it can drop out of memory pool.
Many miners are accepting transactions paying less than 1 sat/vbyte as fee and most probably, more and more miners will do the same thing soon.
Just check mempool.space or any other block explorer. You can find many blocks with transactions paying less than 1 sat/vbyte as fee.