Calendar

When you tap the meeting time, the scroll wheel opens.

Then tap on the time (do not swipe the wheel) and a keypad should open to enter the exact time.

Does this solve your issue?

I preferred the integrated solution in iOS 14 but maybe not many others did…

Hello rebeccafromaiken,

Welcome to Apple Support Communities!

If we understand your post correctly, you want to know how to go back to minute increments in Calendar scheduling.

Apple does invite feedback and feature requests via their product feedback portal: Product Feedback

Thank you for using Apple Support Communities.

Take care!

My pleasure. 😉