Hey cobrasvt,
We'd be happy to help out. We understand you're having some issues charging your iPhone 14 Pro Max using a MagSafe car charger from Belkin. To clarify, is it not charging your iPhone 14 Pro Max or are you just asking why the animation didn't appear? The animation would not be required in order to use the accessory, but if you're having issues charging altogether, the following resources may be helpful:
MagSafe chargers and battery packs for iPhone - Apple Support
How to use your MagSafe Charger with iPhone 13 models and iPhone 12 models - Apple Support
While the above link doesn't mention iPhone 14, the same steps for iPhone 13 and 12 models would still apply. If you continue to have issues using MagSafe on your iPhone 14 Pro Max, you may be best supported by reaching out to Apple Support next: Get Support
We hope this helps out.
Take care!