Gotcha, although you don't need much GPU for Monkey Island
For my money the Deck might not be the most powerful handheld (it was never meant to be), but by its nature it's the most tightly integrated to the Steam ecosystem.
On the OLED thing, I wouldn't say The Phawkx is a clickbaity content creator at all- he was very clear that his tests are unrealistic in the general use case, but it was a useful test intended to demonstrate that the OLED
can burn in. Every OLED will degrade in some way eventually, it's the nature of the technology, but you'd have to be really trying hard to make it a practical issue over the sort of timescales these devices are useful for, and with a bit of DIY skill they're replaceable components, so I don't see it as an issue.
Having said that, after trying an OLED version I have no plans to upgrade, I'm quite happy with my OG LCD.