For me I've experimented with restricted cards. For example, I have essentially a collapsed menu of controls for my PC, accessible only when a switch is toggled on, and the card with the switch is only visible to me.
- type: conditional
conditions:
- condition: user
users:
- 9ecc550a1dc14e0a98071750a1673abc
card:
type: entities
entities:
- entity: switch.pc_admin_controls
toggle: true
- type: conditional
conditions:
- entity: switch.pc_admin_controls
state_not: "off"
card:
type: grid
columns: 4

(Ignore that I haven't fixed the yellow warning entities yet lol)
