If you're thinking about starting a company in Estonia under the "e-residency" program, you should know that Estonian banks have recently become very skeptical about opening bank accounts for foreigners. It's not enough that you have an Estonian corporation, you'll probably be expected to demonstrate that your business has actual ties to Estonia.

Finnish entrepreneurs are being denied bank accounts despite the close ties of the two countries: https://www.hs.fi/talous/art-2000006279056.html (Article in Finnish only, sorry)

The background for this change is a huge money laundering scandal where Estonian banks took in Russian money over decades with very few questions asked... It sucks that "little guy" startup founders are the ones getting excluded, but that's how it goes.