feat: a PC that had Gaming on NVIDIA on gets the SteamOS conversion ticked, as an update

lib/menu.sh

@@ -113,6 +113,8 @@ feature_outdated() {
     # On, but set up by an older version of that feature (compared as
     # versions: 2.10.0 is newer than 2.9.0).
     local have want
+    # "Gaming on NVIDIA" is on: the SteamOS conversion replaces it, as an update of what the PC has (lib/nvidia.sh).
+    [[ "$1" == gaming ]] && nvidia_migration_pending && return 0
     [[ "${CURRENT[$1]:-0}" == 1 ]] || return 1
     have="$(state_get features "$1" "$FEATURE_BASELINE")"
     [[ "$have" == off ]] && have="$FEATURE_BASELINE"
@@ -182,6 +184,8 @@ detect_components() {
         component_available "$c" || continue
         { feature_outdated "$c" || feature_new "$c"; } && WANTED[$c]=1
     done
+    # "Gaming on NVIDIA" was on: its replacement, the SteamOS conversion, comes with the defaults of a first run.
+    nvidia_migration_pending && WANTED[glyphs]=1
     # The kernel pin is no longer needed (the power-off fix), and HDMI
     # refresh boost needed the pin: whatever is left of either is unticked,
     # so a normal run removes it.

lib/nvidia.sh

@@ -41,6 +41,12 @@ nvidia_present() {
 # A PC that has this on keeps it until the conversion is turned on, which calls nvidia_swap_out.
 nvidia_available() { return 1; }
 
+nvidia_migration_pending() {
+    # "Gaming on NVIDIA" is on (set up before 2.11.2) and the SteamOS conversion that replaces it isn't: the menu ticks the
+    # conversion and shows it as an update, so a normal run moves the PC over (nvidia_swap_out in gsn_enable).
+    nvidia_present && nvidia_status && ! gaming_status 2>/dev/null
+}
+
 nvidia_swap_out() {
     # The conversion takes over: Steam no longer starts by itself on the desktop at login (both would start it). Steam, the
     # packages and the NVIDIA settings stay: the conversion needs them too. The state stays for the conversion's own disable.