I haven't tried a Multi-sig wallet with just one Electrum and hardware wallet. I don't know whether Trezor can still display the receiving address on the multi-sig wallet. Maybe I'll try it another time.
I'm not 100% sure, but I think Electrum shows multisig addresses on Tresor . On Jade it does, I just checked it. It seems to work with other hardware wallets as well. Only with Ledger it doesn't work with either Electrum or Sparrow.