Thank you for the feedback. Changing the default setting is under review by the feature team, and your feedback is very useful as they are evaluating.
This is still under review, no decision has been made. But I will keep following up with the feature team and providing them your feedback.
The team is looking into this feature and considering solutions. We will update when there is more information to share.
Group Calendar is a priority for the team, and the feature team is continuing work on it. You’ll start to see some incremental improvements. We look forward to sharing more details and timeframes soon.
The team is currently planning for this work, we will share an update as soon as one is available.
(I apologize for the prior incorrect update – it was intended for https://microsoftteams.uservoice.com/admin/v3/ideas/16958344)