Is it similar in other places, e.g. Pula or Zadar, or is it even worse there as they're also touristy? I wouldn't mind renting something for 1000 EUR/month as long as I can skip paying the taxes on crypto. I just need some certainty which I don't know where to get. :/
For 1000 EUR/month, you can get a good-looking, 2-room apartment (at least) 60 m2 or more in all cities in Croatia, including tourist destinations (except maybe Dubrovnik). It all depends on what you're looking for. It is generally worth avoiding urban centers and attractive locations, and looking for quieter, residential neighborhoods to find the best deals. You might even find smaller houses with gardens in these areas for the same price. Since you likely won't be working here, a daily commute won't be a factor.