I have a “fixed account” that is my 800K and I never touch it. Once a year when I get my letters for immigration I take some of the earned interest out for my “same day transaction”.
Then I have a standard debit card account with the same bank. For me it’s just really easy this way.
When I go ask for 3 months statements for immigration it’s maybe
They called me about 2 hours before the visit because that’s how long their drive was. They just talked to us and neighbors as well my mother in law. Hilariously she got most of questions they asked wrong. In the end they didn’t care. We were all laughing about it.