Not only the wallet support RBF, the transaction itself must have RBF flag enabled.
As I explained above, now that a significant minority of the network is running full RBF, and at least one mining pool is mining full RBF replacements, then this isn't strictly true anymore.
In other words, it's still generally true. Besides, the wallet software must have feature to create conflicting transaction or at least delete unconfirmed transaction from the wallet itself.
Does anyone have a link, graph or something that counts these "minting' transactions/day?
User @d5000 create one, although it's about size/day rather than TX/day.
I made a little visualization about the size of ordinal inscription transactions, to be able to follow the evolution of their impact in the chain:
https://dune.com/d5k/ordinals-by-size--snip--