Having worked in two companies practicing hybrid office with no nominative desks but two very different ways of doing it, I can say that it can be great. Or a nightmare.
In the first one they just converted regular nominative desks to free ones. Every desk had different screens with different cable standards, no ergo stand for the screens, some had shared keyboards, each had different chairs, some had drawers, some had accessible outlets, other were hidden behind the desk... You had to come with your stuff from home. And the cleaning was done once a week.
The second one, every desk is the same. The same two screens on ergo stands. A USB-C dock with network connected to the screens. Easily accessible on the desk to plug USB devices. Same chairs at each desk. Each employee has a big personal locker to put stuff like keyboard, headset, coffee mug... Cleaning done every evening so when you arrive in the morning everything is perfectly clean.
You can see which is which.
The second is by far the best place I worked at in my 10+ years career. Depending on what is your main topic of the day, you just pick the next near the people with whom you'll work. Don't want to be bothered with your coworkers most of the day? Just go near another team. And you can also meet new people this way. You can even change desk during the day if need to change context. Just unplug your laptop.
I know people prefer having their own desk with pictures, goodies and other junk. And I thought I was one of them. Until I tried free office the right way.