Commissario
I'm not sure how accurate that is, although it may be regional.Funny exact opposite experience for me with odeon and cine world.
Odeon feels like the same cinema I went to as a kid 20 years ago. Cine world however has lovely seats, teared seats ffs which odeon doesn't have that well, they did have those moving seats, and even the 4dx in some screens.
I think it just depends how new a cinema is. Odeon was built 30 odd years ago. Cine world less than 10. But when odeon is ever redone, then it'll feel much nicer than cine world for 10 years, until cine world then refresh and that feels better etc.
The Cineworld near me was meant to be one of their newest and greatest (brand new, as one of the key features of a new shopping/experience complex), it felt uncared for (in the technical department) after just a few months, the Odeon which is now probably 10 years old still felt "new" in terms of maintenance when I went to see Dune.
I wonder if it's partly down to regional management, or even the on site manager, as from memory the Cineworld near one of my friends is in a converted Music Hall/Theatre, complete with the original floor layout for seating, but they had the electric adjustable, really comfy seating as part of a refit that was done.