I worked in those countries and more; never had those issues, but then again, I don't worry as much about details as you seem to do. Who reports that they are running a business in another country? The Belgians, like many others in the eu, are on paper a stickler for the rules, but in reality, not many people care or do that. Especially in Belgium where I heard locals at the chess club call them guidelines as a sort of joke.
That you need to be a resident to open a bank account is silly, I admit, but KYC and AML are a problem banks have to work with. Even in the EU, you can disappear a bit over borders: my birth country tax office lost me only after one jump and I moved 6 times since then. I always have to call them and explain things as they still don't have a clue that I am not in in my home country anymore; it's been 20+ years...
Your experience sounds a while ago; things did get somewhat easier; my gripes are opening bank accounts (but we have neobanks now; not sure if that works with rent) which should be eu wide, nummerplates (you have to import your car if you move somewhere which I do find nonsense; it's a tax thing) and renting. The rest is pretty smooth. If these things, and preferably tax, can be done eu wide, it's good. I just do the stuff I agree with and ignore the rest; it is what the locals in every country I have been to do too: hell, I am the only one (that I know of) paying (significant) taxes in my town; people laugh at me at parties.
That you need to be a resident to open a bank account is silly, I admit, but KYC and AML are a problem banks have to work with. Even in the EU, you can disappear a bit over borders: my birth country tax office lost me only after one jump and I moved 6 times since then. I always have to call them and explain things as they still don't have a clue that I am not in in my home country anymore; it's been 20+ years...
Your experience sounds a while ago; things did get somewhat easier; my gripes are opening bank accounts (but we have neobanks now; not sure if that works with rent) which should be eu wide, nummerplates (you have to import your car if you move somewhere which I do find nonsense; it's a tax thing) and renting. The rest is pretty smooth. If these things, and preferably tax, can be done eu wide, it's good. I just do the stuff I agree with and ignore the rest; it is what the locals in every country I have been to do too: hell, I am the only one (that I know of) paying (significant) taxes in my town; people laugh at me at parties.