You might wanna think about your priorities in life... There are things that make sense and there are things that are just plain stupid and basement nerd neurotic.
Also all of these things that go beyond "proof how many days, show tax / residency certificate, no marriage, apartment etc" which -everyone- should adhere to are only relevant for high net worth usually (unless you have an tax inspector that has it in for you or is eager for promotion - all known to have happened) as they have much bigger fish to fry and this is a cost / reward game for them. In this︀ case beating the tech is not enough anyways. They will surveil you in person.
Follow the rules or dont do it. It is quite simple. Playing games with tax agencies︁ when larger sums are involved is beyond stupid and not even close to worth it.︂