On that first pic, to me it looks like there is a crack in the rim or a v-shaped chunk out of it. It may just be the lighting and quality of the pic.

https://ibb.co/jUQqT6

If you start from the top of the pic it is between the first and second spokes that are visible on the outside edge of the rim.

Was the bead in fact torn from the tire? Although I can agree the 2d and 3d pics sort of look like that the first doesn't. So it could just have come off the rim.

That can be from running too low a pressure, or too high a pressure. Or a damaged rim. It might also be the wrong type tire for that rim or the wrong size tire.

Was the bike bought used?