Responses
Not sure about the first one, but for the last two, I believe it's this:
https://www.mangago.zone/read-manga/isekai_apocalypse_mynoghra_the_conquest_of_the_world_starts_with_the_civilization_of_ruin/
https://www.mangago.zone/read-manga/joou_heika_no_isekai_senryaku/
I've been thinking of two stories but I can't remember the names of either just a specific scene of one and the basic plot of the other.
-A girl is reincarnated as the final boss, she never thought much it. But at some point she realized how tough it must've been the OG, Current doesn't care, she's living her life happily by being strong as hell. But the OG must've been so lonely having to pretended she didn't the magic people thought she did and was shunned for. So despite usually being emotionless, she starts crying unsure why.
-A kid gets reincarnated/transmigrated in a game he used to play. A strategy Nation game (not sure what the actual type of game is called) as the main type of country he played. His country is set to true evil because of this, but he's actually just a nice little guy.
-and the previous one made me think of another, bit similar. Girl gets transmigrated into a game like that but as a spider queen. Pretty sure she started to bond with the hive mind and goes crazy and started a war and killing a bunch of people.