Your wall box at home is unlikely to be 3 phase, therefore having a single phase cable for daily use is handy.it might be worth replacing the cable anyway.
That depends on whether the wall box at home is tethered or untethered ... a tethered type has the cable and plug permanently fitted, so a separate Type 2 cable would only be used for destination charging elsewhere.Your wall box at home is unlikely to be 3 phase, therefore having a single phase cable for daily use is handy.
If you intend to use 3 phase AC EVSE’s, buy a second (22kW) cable.
Is it worth replacing it for the 3 or 4 extra kW on the rarer 3 phase chargers though ? and the 22 kW ones are usually Chademo anyway.Also check if the type 2 cable can handle more than 7kW as this was a max for a lot of MG4 and if you are moving to an EV that can handle 11kW and 22kW it might be worth replacing the cable anyway.