I just want my own office. That's all. I'd be pretty okay with going in if I had my own office with 4 walls. First job of my career, they told me I would have an office of my own. First day I come back do for full time (I had interned there too with my own office), they tell me they're switching buildings to go open office in about a month's time. I got a precious few weeks with a personal office, and then it was all…
An open office is cheaper to manage for the company. It's all about the bottom line. That's most likely the biggest reason it exists.
My employer is looking into allowing 3-4 days remote each week going forward and is then expecting they can downsize their offices to save money.
Would 100% remote be better? For some. For others who don't have the means to work at home, they need the office.
The open office environment is completely detrimental to good deep work though.