Hey there Cris,
Thanks for reaching out to the Apple Support Communities. Just to clarify, when you have more than three pages of apps on your Home Screen, you're only able to see three dots at the bottom of the Home Screen, and the dots don't become highlighted when switching between pages, is that correct?
If so, does this issue persist after restarting your iPhone? If unsure, give that a try with the steps shown here: Restart your iPhone - Apple Support
How to restart your iPhone X, 11, 12, 13, or later
1. Press and hold either volume button and the side button until the power-off slider appears.
2. Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.
3. To turn your device back on, press and hold the side button (on the right side of your iPhone) until you see the Apple logo.
While restarting may seem like a simple step, it can often help with resolving some unexpected issues like this.
Keep us updated on the results, and if still having issues let us know which iOS version you're working with. This can be found in Settings > General > About.
Take care!