In my previous comment I mentioned the OLED LE, that stands for the OLED Limited Edition you mentioned. And no, there’s no inner case I somehow missed. It’s just the one large one.
Interesting take, I think my Deck is a great size and it easily fits in my shoulder bag, I bring it everywhere. Don’t have a want for anything smaller honestly, it feels so good in my hands, anything smaller just gives me hand aches after a bit. But I can understand your perspective.
Or just do what I do. Sign up for game pass once in a blue moon when friend wants to play games. Cancel it after 1-2 months once friend eclipses into non gaming mode for a while. Dispute the charge on card and say MSFT didn’t cancel trial. Get money back every time. Rinse and repeat as needed.