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Feature A: in Gaming Mode, default to a host-managed gamescope at the CLIENT's mode (tear the TV's autologin down on connect) instead of attaching to the running TV session — so the client receives ITS resolution (capture == encode == client mode, fixing the InitializeEncoder size mismatch the attach path hit), not the TV's 4K. Reliability is the debounce: restore_managed_session() now SCHEDULES the TV restore RESTORE_DEBOUNCE (5s) after the last disconnect via a host-lifetime worker, instead of restoring immediately per-disconnect. A reconnect inside the window cancels the pending restore and reuses the still-warm managed session (create_managed_session clears PENDING_RESTORE at the top) — so a quick reconnect (e.g. a controller hiccup) never triggers a gamescope stop/relaunch, which is the per-connect churn that leaked NVIDIA GPU context on F44 (the black-screen reconnect). - vdisplay/gamescope.rs: PENDING_RESTORE + RESTORE_DEBOUNCE; schedule_restore_tv_session (debounced), do_restore_tv_session (the actual restore, worker-driven), start_restore_worker (100ms tick, RAII keepalive handle). create_managed_session cancels the pending restore + reuse path unchanged. - vdisplay.rs: apply_input_env flips gamescope to managed-DEFAULT; PUNKTFUNK_GAMESCOPE_ATTACH (or an explicit _NODE) opts back to attach for couch-on-TV; _MANAGED forces managed. restore_managed_session schedules; new start_restore_worker wrapper. - m3.rs serve(): hold the restore worker for the host lifetime. - bazzite host.env: document managed-default + the ATTACH opt-out. Compiles, clippy-clean, 78 host tests pass. F44 single stop/start leak to be verified live on the box. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>