As an extension to Ericthegreats post. Overclocking almost never is the solution. Its the thing dudebros get told by proponents of a niche aftermarket outfitters market, to make them buy stuff.
If you take that notion away with you instead of "but maybe we can overclock", it will be viable much more often than the cases where a overclock could solve anything.
Also - lets look at underclocking, which is why many people in here believe that overclocking is a thing.
With any device, especially portable ones, you have a thermal ceiling, and you have a energy consumption as related to "amount of battery you can pack in".
Because of that every mobile device, underclocks - as soon as you even just slightly look away. Or for smartphones, as soon, as your finger leaves the touchscreen, and/or stays on it too long.
Its also a common thing, that vendors order a chip from a manufacturer, and the "underclock it" for "continous use" - to reach a certain thermal ceiling over time, or to save battery.
Most prominently a "known" thing with Sony and the PSP, which can run at 333Mhz but most of the time runs a 266Mhz, even in game (
https://www.gamespot.com/forums/playstation-nation-1000002/350-allows-333mhz-to-games-25717001/ ).
In dudebros cycles - the ability of emulators to run at 333Mhz was called a "overclock". In reality it was not. It was just the mode that would make the PSP feel hot, and run out of battery in 2 hours max. For that you got a 25% performance increase on paper - which with overclocking - and without changing thermal parameters (adding a new PC fan to your Switch...), you usually dont get.
Overclocking within the same thermal limits as an OOTB design will maybe grant you performance increases of 5-10% if you are lucky. So nothing to call home for. Most salesmen who specialize in dudebros take the 10% value, and run with it. Then talk it up over time.
That isnt enough to get a noticeable performance increase, aside from fringe cases. I am also of the believe that overclocking became a thing because of "system requirement sheets" on boxes in stores. People took them as gospel, one dude in marketing asked himself "why?", and the guy selling you that special thermal paste, and the aftermarket cooler - would live off of you getting "surprising results" (as in "your results may vary", its an open ecosystem, dear).
But lets talk about thermal design for a moment. The thing that happens, if you do something unexpected there is, that you'll end up with bent Switches all over the place (
https://kotaku.com/nintendo-switch-bending-problems-are-still-a-thing-1797887104 ) - and suddenly deciding, that a certain area in Breath of the wild, should maybe not run at 30fps, while it did in the firmwareupdate before... So there are palpable downsides to messing with or testing out thermal ceilings.
Now lets talk about chip design. If we talk about Nintendo buying a less powerful varient of the X1 from nVidia, strangely all dudebros seam to hear is Nintendo buying an X1 from nVidia. This is how things work on the production side. There is a thing called failure rate in chip production. If a certain process yields a failure rate of lets say 10% of transistors in a micro processor, you could either trow away all of them, or design in a way to deactivate some of those that turned out bad, and sell the processor anyhow - hopefully while still telling, what performance to expect from it. This concept cuts down cost in production, a lot, bcause suddenly not every one of the 20 million chips you produce has to turn out perfect.
So when Nintendo orders a "less powerful version of the X1 - with X1 architechture", Dudebro shouldnt necessarily believe he/she can apply more voltage to get back to X1 levels. Ever.
This is why simplification is a problem - and youtubers are a pest (shorthand for "no one wants to read the details anymore").
So if you add up "overclocking most often only granting useless performance increases, nowadays", "especially if you cant change the thermal design" and "overclocking in major cases in the scene was just - relabeling a known good factory setting and changing the "default"". You could even ask yourself, why people talk about "overclocking" at all.
While at the same time their phones are only ramping up to 100% of their power for maybe 4 seconds at a time, and them profusely complaining, if they do it for more than that - because then their devices get "hot to the touch". (Weatherforcast: Shitstorm)
Of he "newer" plattforms -
PSP, PSX, DC, NDS are possible (if we get hardware acceleration, which we are still a long way removed from),
GCN and Wii are unlikely (talking about games running in a decent state),
PS2 from a current perspective is in "dream on" land.
Thats the split.
People who indicate different outcomes are in the "believer" generation. I mean, it could happen... Its not just very freaking likely.
(From a current POV)