The_Planet_of_the_Apes keeps evolving through the years.
https://en.wikipedia.org/wiki/Kingdom_of_the_Planet_of_the_Apes#Plot
With any long running movie series, it can be challenging to keep or maintain certain aspects.
https://www.ign.com/articles/the-mixed-up-crazy-timeline-of-the-planet-of-the-apes-movies , https://www.youtube.com/watch?v=Xa3OiQGvDho
Every decade the technology improves, so the oldest movies really look like they are from another era. That's just the way it goes.
https://www.ign.com/articles/kingdom-of-the-planet-of-the-apes-post-credits-scene-ending-explained , https://www.youtube.com/watch?v=Loxq2exd2t0
