I don't have the dates written down anywhere I just roughly remember when I built this system... anyways yeah 8 years old not 10 got it.
No offense intended, also sometimes I forget that not everyone has given a thought for a simple rule of remembering the Intel Core i# generations (applies to Android versions as well): Simply add 10 to the build number to get the year of launch. Or distract 10 from the year to get the build number of that era. Unfortunately I haven't figured out similar "rules" for Ryzens or any of the GPUs, or the cheaper CPU models.
Regarding the lifetime of electronics, 6 months
is a lifetime. Same with cars, it's old right when you drive it out of the store. But that isn't synonymous to "obsolete". The usability depends on many other variables than just the latest quirk - a perfect example of that is how processors are made: They are "baked" as a disk of some 1½ ft in diameter, the individual chips being the size of a fingernail or so. And all chips are identical by design, for Intel that means that they
only make i9-14900KS CPUs! However, the closer to the edge the chip is from, the less perfect it is. But as long as parts of a chip work, it can be used for tasks with reduced performance. They simply disable the non-working sections. Thus most of use CPUs that are second-rate, or third or fourth or...
For longevity the best time to get a new computer would be around halfways of the expected life span of the current Windows so that the system would be compatible with the upcoming OS. Windows 10 was launched 2015 so based on history that halfway point would have been around 2020. Windows 11 can be run on systems from 2018 and up but they didn't tell that until 2021. That makes guessing a hit and miss game.