I'm curious about how to get skin that holds makeup well.

I'm really stressed because my makeup just isn't applying well lately. Even when I do my basic skincare properly, it feels like it cakes and flakes off by the afternoon, and I can't figure out why. I'm confused whether it's an exfoliation issue or just a lack of moisture, but I have no idea where to start. I'm also debating whether I need to switch my base products or if I should address this during the skincare routine. I've heard that having good skin for makeup ultimately depends on the basics; has anyone actually seen results with this method? Please share any tips you have!