I've logged nearly a hundred hours in Two Point Museum on PS5 and have some features I think would be nice to have:
Sorting and filtering within the exhibit list, perhaps by rarity or exhibit type, as the current way they are sorted feels a touch obtuse.
A way to guide customers through buildings — think guard routes in Prison Architect.
A heatmap view of what makes the most money would also be useful.
Templates for whole buildings (including rooms, but not exhibits) would be a nice touch too.
This is more niche but the information about staff (zones, happiness, traits, etc.) feels difficult to access at once; it requires flipping through multiple menus and cross-referencing between them. My suggestion is an 'information density' setting, similar to the status icon filter it would change how much information the player sees in each of the staff tabs.