The Wayfinders are still there, but their importance is reduced. Rey goes to the DSII wreckage looking for the second one. As soon as she’s gone, the Falcon is recalled back to the Resistance base due to Leia’s failing health where they discover D-O can lead them to Exegol.

It’s not perfect as Rey is still looking for the Wayfinder after the Resistance has mounted it’s attack on Exegol, although the Wayfinder is forgotten about once Kylo Ren shows up and crushes it.

I also need to find some additional dialogue to make it clear that the Falcon was recalled to base and didn’t just abandon Rey.