I’m sorry that you’re getting less than sympathetic replies here. I don’t know what the original was since you’ve edited the post and I don’t have anything constructive to add as I assume you’re in the US, but in the EU/UK goods have to last “a reasonable amount of time” regardless of the warranty term.

Some cheap plastic tat might reasonably be expected to last a few months, a washing machine maybe 10 years provided it’s not misused. The further out you get from the warranty period, the more the onus is on the customer to prove it’s a manufacturing defect, and the less you can expect in monetary compensation.

For a high value item like a computer, TV, or the Steam Deck no reasonable person would consider it a good run, shrug their shoulders, and rush out to buy a new one when it unceremoniously died 4 months outside of the warranty period. If that happened to me in the UK I’d be throwing the consumer rights book at them.

Sorry, I know none of that helps if you’re not in the EU/UK, but contrary to what other are saying I don’t think you’re being unreasonable in complaining at all.