If you're considering buying a foldable phone like the Google Pixel 9 Pro Fold and Samsung Galaxy Z Fold 6, it's probably for their giant, tablet-size bendable screens rather than their cameras. But ...
You make some compromises for a cheaper phone. The new Razr Plus has a bigger cover display and runs on a more capable system-on-chip. But you don't get a telephoto lens on the less expensive Razr.