-snip-Electrum has never allowed direct creation of nested SegWit addresses - the only way was to have such an address in Electrum is to use Iancoleman's BIP39 seed generator and then enter such a seed into Electrum. For more information, see the following thread.
How to get SegWit addresses starting with a "3" in Electrum? The thread is quite outdated since it's for older versions of Electrum.
Following step 7 will produce a different set of keys for BIP49 derivation path.
Instead of manually editing the path, all he has to do is to select
p2sh-segwit (p2wpkh-p2sh) in the Script type and Derivation path window of the later Electrum versions.