Is a Thai business registration sufficient for a new visa application and what are the financial requirements?

Hello and good day, the following situation: I have a business mental coaching and of course have a business registration. If I now want to apply for a new visa for Thailand, for example, is a copy of the business registration sufficient or does it have to be translated into English and certified by someone beforehand, or is this official business registration sufficient and the officials will accept it as it is?

In addition to this, the question is whether 30,000 Baht or 500,000 bht is required as a one-off deposit. I have heard that these 30,000 bahts per month also have to be proven through pensions, for example. Who has their information about this? Or do the officials there want to see proof of where the 30,000 bht came from?

Finally the question, who has experience with these visas to get a bank account in Thailand, is this recognized?

Otherwise, I wish all digital nomads here a lot of fun in Thailand, good business and always a diplomatic hand and sometimes I wish that the comments here weren't so ridiculous or that the whole thing was taken a bit more seriously. Thank you.