Cybertruck should Include Heat Rejection Glass
The glass on the Cybertruck should reject and block maximum amounts of Infared, UV, and temperature in addition to being bulletproof. Should also have a few glare reduction and tinted window options included that are built into the glass.
Likely it will block IR and UV.
Glare reduction usually means polarizing. Those that wear polarizing glasses can be blocked from seeing through the glass, so I doubt that will happen. Are you aware of any vehicle that uses non-glare glass today?
In the past, Tesla has left tinting to owners. My guess is they will stay this way. Cheaper to have one version for everyone and simplifies manufacturing.