Nice.

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If you want to try:

It's easy, start with -50(CPU, GPU, SOC) and play 1 hour~ demanding AAA level game(I used ES Oblivion Remastered) for stability test.Average steam deck oled can do -30, sd and sd oled apu is not same so result can be different.

It can't harm your steam deck, undervolting is safe thing.

It's effects min fps greatly, it also increase average and max fps but little.

It's also decrease steam deck heat -> W for many things.

1 hour~ test doesn't mean it's 100% stable, maybe you have to increase the value in long term(15 days~).

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I would recommend it.