This has been my primary concern with getting this to work as well. If I do decide to go with the portable monitor which I’m leaning more towards now it’ll for sure be a bit more clunky to get out the monitor, plug in the steam deck, pull out a mouse and keyboard and make sure their paired and then get going. Our trains here are very spacious most of the time unless it gets crowded so for the most part that itself wouldn’t be too big of an issue but depends on how much effort I feel needs to go into getting everything setup for my usual 40 minute train ride to get a few write-ups on my assignment done. Realistically I would probably skip the monitor and get the keyboard out and use the touchscreen thinking about it.