My wife and I have a two bed flat - we sleep in the "front" room (no need for guests!) and have a work room each. Hers (and most of the rest of the apartment) is full of her PhD books, clothes and perfumes (and raw ingredients for perfumes, she makes them) and some more books, and some towering piles of things that resemble more books but I've not actually gone through to be sure.
Mine, is full of drums and whisky, and more of both. Supporting each other in our individual things is part of the relationship. If we didn't, what would be the point. She's also a dancer of various styles, and a couple of years ago took up flamenco. Her interest in rhythm has been increasing ever since, and I sometimes I get her tapping through the first page of stick control with me.
Sorry, did I say two beds and a front room? I mean our flat is a one bed flat with a studio and a library.
The only thing I'm missing at home is a distillery (and tbh once her visa status is a bit more sorted and I'm not scared of her being deported for me moonshining, I know how to solve that) so I can make my other passion, and sideline in making her neutral grain spirit for her to use as a base for her perfume goals.
Again, supporting each other in our individual things is part of the relationship. If we didn't, what would be the point. All our interests are "parallel" interests, and we teach/show each other new perspectives on our own interests.