It would be nice to have more options about what to show in the main feed in the activity highlight.
For example: if I go on a run that has on average 101ft per mile run of elevation gain, the total elevation gain of the run shows in the feed highlight, otherwise it does not. Having more granular control over what is shown by default for each activity type would be nice. Right now it seems determined by activity tagging, for example, indoor cycling vs ride. For indoor cycling the power is shown in the feed, otherwise you have to drill down. There is no way to know these rules without experimentation and no way to control them right now.
Also I've noticed recently some activities are not showing the total moving duration unless you drill down into the specific details, even with no segments or achievements.