Many studios prefer artists who can do both, as it makes you more versatile for different project types. However, some larger studios do have specialists for each area.
From my experience working with various studios over the years, being skilled in both interior and exterior work definitely makes you more marketable. Smaller studios especially value this versatility because projects often require both types of visualization. I've worked on residential projects where I needed to create both interior living spaces and exterior landscaping views for the same client. The skillsets complement each other well too - lighting principles, composition, and material understanding apply to both. You can find opportunities for generalist positions at https://cgaward.com.ua/work.html - many of the listings I've seen there are looking for artists who can handle both interior and exterior visualization projects.