I'm not sure if anyone else has done this yet, but I upgraded the internal SSD for my series S with one from a broken series X I purchased on ebay.
If you want to do this swap, you'll need to clone all of the partitions from the original 512gb ssd to the 1tb ssd with the exception of the user...
On the go tho I meant, I use my 10" tablet and a Bluetooth controller for retro gaming while sitting on my porch or on long car rides sometimes. Easier on my eyes than the Switch screen.
Ken unless the games are made for that screen size most suck on a screen that size... Having a square screen and being brighter and higher res helps but it's not a cure all, text is tiny bullets are tiny, your.... Well lol