Current maximum for “Maximum Equipment Slots” in Island Settings and similar is 5.
That’s a reasonable limit for an FPS Battle Royale, but it feels a bit too limiting for alternative game modes, for example exploration-based maps where discovery is rewarded with rare items or better traversal tools.
It would be great to have a larger limit: 10 should be good for the on-screen inventory. Of course 5 can still be the default, so that existing maps are not broken.