Is there a way to use a single map but turn layers on and off independently from the map TOC in different map frames and layouts?
This could allow us to update symbology on a single map which would in turn update many layouts. This would mean we do not need to update symbology for many maps. Currently it is only possible (as far as i am aware) to change the extent of a map frame in a layout that does snot affect the map itself.
I believe this is possible in QGIS by being able to lock the layers in print composer:
Just added my kudo to the idea, which has over 110 kudos, and 5 pages of comments. What else do we need to do to have it be built and add to the next release? To me it's not an enhancement but a design bug to be fixed. The product needs have a bit MVVM in its design.
I'm wondering the same thing. Over a year has passed since you posted this, and no change. This has been basic functionality in QGIS for years.