It would be best if you can provide actual examples of those past transactions and hopefully, mempool.space still logged its RBF history.
I looked up some of my old tx's from 2 years ago. Doesn't look like mempool.space logs in RBF history that far back.
That's unfortunate, it would've cleared whatever misunderstanding with the previous batch transactions that you used to do.
Since it never been about the fee rate, it has to be calculated precisely from the mentioned values.
There's not even a fee rate in the transaction data, it's calculated by the client (
Electrum) on-the-fly based from its size and left-over amount.
Since we have no data to analyze, the query can't be resolved.
Just take note that Electrum implemented RBF based from its standard and falling to do so will cause the transaction to be rejected by nodes.