Nah the new games do a good job of letting you know what’s going on. Plus it is a totally different pantheon of Gods/ story arc. I played the OGs as a kid and didn’t revisit them at all before playing the new ones and loved them.
The new games do not play like the old ones. If you aren’t enjoying the god of war collection I would still very much recommend playing the new ones. Both of the new games have amazing stories, interesting puzzles, and great gameplay.