You really think one form of sitting is better than another? I think I'd rather alternate between slouching for 40 minutes and then walking around for 10 then to sit at a desk. But, we'll see how my experiment pans out!

(I worked from a couch at WeWork for a year prior to this and it didn't seem to ruin me).

I've been doing the laptop and easy-chair thing for years. Posture isn't bad, pressure is somewhat easily distributed. It's great as long as you have a chair that supports the head/neck.

I had been working primarily remote (1-2 days in office for 6) alternating between standing and sitting in my recliner. Switched jobs where I was expected in office 5 days a week for 8+ hours. Friday night the first week I was there I tore a disc in my back. It wasn't until I left and took some time off that it fully healed and allowed me to strengthen my core.

Needless to say my current job is heavy remote with flexible time in the office that I took over a higher paying position.