Sometimes, all you have to do is ask. I had an ex-employer want me back. They have a 40hr/week culture, mostly onsite, ass-in-seat. I asked for part time (3 days per week) remote. They didn't love it initially. Probably hadn't occurred to them as an option, but after consideration they accepted. Better 24hrs/week than zero I suppose. And I was more motivated to add value for the few precious hours I was on the clock. I bet I produced nearly as well as anyone else physically there (but mentally less focused)