I will be waiting for news for Erista
Well anyone going into OC should always check things, I my self am not planning to go beyond the actual full Nvidia tegra SOC specs on my Erista (other than the memory cause I'm using 1863mhz when needed)...
Many people for example talk about SOC degradation, the SOC is usually the last important thing in those kind of devices unless going overvoltage a lot, the biggest problem will be the actual motherboard power design and those things are made to be as cheap as possible for the specified specs.
The SOC wearing faster is not even any kind of concern, I mean I had my intel I7 2600K from 2011 (3.8ghz max turbo) at 4.9ghz on high voltage and on a air cooler for all this time and only manage to burn 1 core half a year ago, 11 years in use with many thousands of hours.
Portable things made on a tight budget will have many other major failures than the SOC, usually power delivery might go puff on OC.
Erista I have seen a few years ago and seem to be kinda locked into 18W max stock and that is when charging both the console + joy-cons + dock USB\hdmi while playing as it will reduce charge power to not go above it's USB-C power design despite the charger being above 30W...
Digital foundry when tested quite a few time ago the Switch Erista can jump to 20W on OC (I think it was actually just full Tegra X1 official clocks and not even going above it's specs), that's already above Switch internal power usage for how the board is designed as stock specs not to mention if the switch had to charge the battery + Joy-cons at the same time though it probably wouldn't even charge almost anything...
ps: On desktop PC it's already tricky to get actual full extreme OC when power delivery sometimes is not even any problem on a well engineered board + GPU PCB design made for extreme OC, it's mostly luck to get good silicon than can OC a lot with lower voltages than the majority... Usually RAM OC is the worse and takes a HUGE amount of time on a PC if you want to get the most out of it, need to increase voltage on memories, CPU memory controller and spend many countless hours tweaking the timings (sometimes also seem stable but might fail like after 2 hours of heavy testing, BSOD's and all sorts of errors)...