I just want to survive and create my own world, i go to the nether and saw 2 nether fortresses very close (they were in the same place and it was clear from the different heights of the bridges), then i look and saw 3rd fortress. I was interesting, copy seed and go to creative world, then i saw that so close to each others was 5 fortresses, here the seed "-937790304829617528", Version 1.19.3, and here the coordinates of fortresses:

Double Fortress: -270 ~ 110;
3rd Fortress: -360 ~ -10;
4th Fortress: -540 ~ 40;
5th Fortress: -755 ~ -100.

And i just want to ask, what is the chance of spawn so many fortresses at such a distance?