I totally agree with you @ronaldpj! This feature shouldn't have been removed from the app. This is a downgrade, not an upgrade! We have been lucky as Android users though. They took this feature away from the iOS app a couple of years ago. I don't know if it was ever brought back for them but I have seen a few posts in that platform forum about this topic from 2021.
one of many terrible decisions, I rely on being able to access the 15 minute intervals for precision activity checking and for doing things like verifying the accuracy of sleep onset time.
it looks like this info is still available on the website dashboard which has also been altered to make it less useful so it's a giant pain in the **ahem** but it's still there, pending your switch to Garmin or Apple watch or whatever.