My one big gripe with the Maintenance Dashboard is that it Home Assistant now hides battery status on other dashboards. So, for example I have the devices for my off-grid solar setup all in a "room" called "Solar", and to show battery charge percentages on the same page, I'm having to use a template helper to make my battery percentages not appear as batteries so they don't get moved from the "Solar" room/group on my dashboard to the Maintenance Dashboard.
A way to mark certain batteries as not tracked on Maintenance Dashboard or something would be nice for the rare occasions where a battery state isn't a maintenance concern but is relevant to the area I've tagged it as being in.