Good news for you is that whoever told you that was almost certainly wrong. Apple considers a product "vintage" 5 years after it was last offered for sale, and "obsolete" 7 years after it was last offered for sale[1]. Parts availability is guaranteed until vintage status, and is generally still available until obsolete status.
The M1 airs were available for sale as recently as march of 2024, so you have at minimum another ~3 years of replacement parts availability ahead of you. The timer starts from the last offering for sale, not when you bought your computer. Software updates might be more limited, we'll have to see. 6-7 major updates is about average for the Airs[2], but 8 and 9 isn't unheard of either and we're already at 7 for the M1s
They were however right about one thing, out of warranty repairs are only warrantied for 90 days from Apple.
The M1 airs were available for sale as recently as march of 2024, so you have at minimum another ~3 years of replacement parts availability ahead of you. The timer starts from the last offering for sale, not when you bought your computer. Software updates might be more limited, we'll have to see. 6-7 major updates is about average for the Airs[2], but 8 and 9 isn't unheard of either and we're already at 7 for the M1s
They were however right about one thing, out of warranty repairs are only warrantied for 90 days from Apple.
[1]: https://support.apple.com/en-us/102772
[2]: https://en.wikipedia.org/wiki/MacBook_Air#Supported_operatin...