Permissions Policy integration

[bershanskiy]

Fullscreen API specifies a Permissions Policy-controlled feature called fullscreen with default allow-list of self.[1] This proposal appears to lack an explicit separate feature for locked and unlocked fullscreen mode. Given the potential for abuse of a system-level full-screen lock, is there any interest in introducing a separate sub-feature specifically for the lock, e.g. called fullscreen-lock?

[1] Fullscreen API specification paragraph 6 "Permissions Policy Integration"