Got a 12 volt compressor fridge so it doesn't make any difference to this set up as it runs direct off the habitation batteries.What's your fridge? 3-way with gas or compressor with electric only?
If it's 3-way then keep it running on gas when parked up, as it will soon flatten the EcoFlow on 240v.
It is something I've considered, so we can use kettle, remoska etc off grid, just limited to space.