You can use Lightning, just not a lightning address (that is an LNURL, for example thesimplestbitcoinbook@getalby.com)

You can use Lightning invoices tho.

If you click on Receive in Phoenix, then copy the Lightning address that shows and paste here and I will send you a few sats.

You can also make it the default wallet for zapping, just not sure how well it works for that lately, can try and see