We're both 50s.
He's comfortably placed because he never married and doesn't have DC, so has never had any financial ties and always low outgoings. He's SE and works as much as he needs to to fund his lifestyle, picking and choosing the better paid jobs. If I'd met him when we were young I can't see that we'd have "settled down" together, but as a fun companion to have adventures with in middle age, he'll do nicely.
I do OK financially because I was a fairly high earner but always lived well within my means, and now my mortgage is paid off and DC are adults, I do a few hours a week, which can be as flexible as I like.
We don't live together and never will.
The flexible working means it seems like we work even less then we do. E.g. we finsihed at lunchtime on Friday, went away for the weekend, got back yesterday evening, he went home to do a few bits ready for the work week and I logged on and worked until midnight, ready to watch the football. Then we slept until mid morning. I'll check emails and make sure nothing has happened I need to deal with this afternoon, but don't need to be fully in work mode until Weds. DP has a big piece of work Thurs/Fri which will pay an "average" weekly wage.
So, we're fortunate, and we know that, but we've also seen opportunities and taken them and we choose to live fairly simply at home to enable trips away and a relaxed working life. I can't speak for him, but also I worked really really hard for the first 3 decades of my working life to be in this position now.
In all that chats about who did/didn't watch the football and how we're all coping today, we have had a lot of "it's all right for those who don't need to work", and it's starting not to feel affectionate!
I don't think we brag about our lifestyle, we only answered questions. Would friends like us annoy you?