Abandoned homesteads, village homes or dachas. Some areas have a lot of abandoned houses. It sometimes takes years to find squatters in some places. My father in law is an alcoholic who has been moving between abandoned houses for 5 years now, sometimes with owner’s permission.
Near bigger cities, you sometimes get forest camps, but local government tends to remove them when they are found.
j aubrey is a YouTube channel who covers popular people’s descent into madness.