I've already submitted feedback on this breaking change and Apple replied...
"The screen capture service is a system-wide service (not a per-user service) and system-wide services should only be modifiable by an administrator. Starting with macOS Big Sur, granting access to screen recording will require admin authentication."
Are standard users meant to not be able to enable screen recording access moving forward? That would cripple our deployment as it means people wouldn't be able to get help through remote support or share their screen with videoconferencing apps like WebEx, Zoom, and Google Meet.
I would be very happy if the intent is for Apple to provide Mac admins an alternative path to enable screen recording for standard user accounts. If that were the plan they could have communicated that in any number of ways.
WWDC sessions
AppleSeed or developer release notes
What's New for Enterprise and Education
Right now all we have is a Feedback Assistant reply telling us the current behavior is working as expected. Please clarify what the future plan is. Right now this feel tone deaf, especially considering the current work from home conditions.