I recently discovered that in newer Electrum versions you are not able to generate Legacy addresses anymore from a fresh wallet.
I think that Electrum developers also removed optional RBF, so now all transaction will be broadcasted with RBF by default.
You can always use alternative open source wallets instead of Electrum, for example
Sparrow Wallet is really good and I think you can still use all address formats there.
I prefer using segwit format most of the times, but I would understand that in some cases people need to use old formats, for whatever reasons.