Hi - sorry if this sounds dumb but reason I'm asking is we're moving over for 1-2 years. Ideally we were looking for a furnished apt, but it seems like if we are willing to take something unfurnished we could find somewhere much nicer, and have much better choice!

I know each apartment is different, but just wondering usually what does it mean? Like would there be curtains / light fittings etc, or is it usually just a shell really with a fitted kitchen and bathroom?

Again know each one is different, but just wondering for a rough idea of what percentage of the time you'd expect what etc.

A shell with all the major appliances including dishwasher (sometimes), fridge and washing machine. The rest is up to you.

does that also normally include light fixtures?

No light fittings, usually only a communal washing machine too unless you're v lucky.

you will not usually find a light fitting nor bulb in a new rental, unless you have a strip light in the kitchen.

With my extensive* experience of renting in the Zurich region, you'll find lights in the bathroom as well.

*I have now rented two apartments, and helped one other person move into a third apartment ...