Please don't do anything security critical with them.
Other OS providers do support the devices longer. At least for core OS updates.
9 years of OS support seems pretty good to me.
Microsoft is abandoning 63% of its user base later this year, with an untold amount of those users unable to update to Windows 11 due to the requirements of a processor released after 2017. Keep in mind that with how the average Windows user buys their device, it's common to see brand new computers with two years old CPUs. With the pandemic having forced everyone to scrape the bottom of the barrel for laptops, there are so many people getting bitten by Microsoft right now.