Great posts here.
Have you considered getting a shared apartment?
You could seperate physically all of the time or part of the time.
You wouldnt move the wardrobe and you wouldnt tell the kids.
Traveling for work or whatever

Me: 34
Stbxw: 30
D:5 D:3
Mini bd: May/June 2019
Married: Aug 2019
BD: 6th Dec 2019
OM Confirmed: Feb 2020
March 2020: I filed for D
Waiting for D to be finalized and W to move out end of January 2021