I would like to add that I would also be willing to purchase another lifetime license for a version of Launchbox on SteamDeck. Even though solutions like ES-DE don't compare to the quality and fluidity of Launchbox, it's still a better alternative than installing Windows on a handheld device.
A suggestion to @Jason Carr, please consider launching a funding campaign (Feature Bounties). Considering the investment necessary to operate in this port (and of course, considering future support and maintenance). Reaching the value, victory. If not, the value will return to potential investors. It's a win-win. It would be really awesome to be able to enjoy LB on SteamDeck.