Yea, this is just good if you're using a shit wallet that doesn't support fees/RBF properly. Or even if a counterparty is sending you coins, and they set way too low of a fee.
This is also nothing new. There have been transaction accelerators for many years. Having as an option in mempool.space is a nice tool to have, imo.
So what are the wallets that support RBF? Any link ref?