If you must bank in eastern europe try Estonia, sure they are EU linked and will comply with CRS faster than anyone else but keep in mind the country still runs on russian mob money. There's no shortage of private banks there that will do magic tricks for you if you're wealthy enough. At least you will have stability and less risks of your money going straight into thai hookers and cocaine.
People use Belarus for the following reasons:
1) They live very close by and can basically drive there to settle their business, so they feel safe enough to move their money there. Usually︀ those people have ties there too, like a business or real estate at the very︁ least.
2) They do so to invest in local businesses or open offices for cheap︂ labor for example, a lot of german entrepreneurs do this for their tech startups.
3) Literal mob money, usually mob related inflow is minimal as even gangsters tend to measure︃ their risks nowadays. So what ever money they put there is money they don't mind︄ losing anyways, they got other hubs where deposits come in as well (Estonia, Latvia, Lithuania,︅ Hong Kong etc).
I never saw anyone use Belarus for crypto-related reasons, if anything, that's︆ an even easier way to trigger red flags and attract unnecessary attention. In many countries,︇ if you show up to your bank and they see a wire from Belarus +︈ you tell them the origin is from investments (Not even crypto), they'll definitely be more︉ inclined to ask for more details. It's not a smart way to move money as︊ it will create more problems in the long run, especially if you tried to evade︋ reporting in the first place lol.
If you do go for Belarus, make sure you︌ do it in-person, don't trust anyone offering "remote account openings", and don't give them excuses︍ to mess with your money.