Why does a newly purchased laptop no longer work properly after the expired 24 month warranty?

I would like to know why a new laptop or notebook with a price between 300 to 400 euro no longer works properly after the expired warranty of 24 months, the Windows 10 update hesitates until it is downloaded, hangs, long waiting times until it goes ON on Windows, etc. Does this have something to do with the expired license after 2 years, or what is the problem? Sure, laptops up to 400 euro are not of the same quality as 1000 euro or more. But if I buy a new laptop for about 350 euro with a 3 year warranty (2 years legal guarantee and plus 50.00 euro additional 1 year guarantee), how is the device still only has a 24 month license for proper function, or does the device have a 3-year license and then run out of steam?

Because he's not new anymore.

Devices usually fail because they are completely messed up by their lay users and that usually doesn't take 24 months.

There's also the so-called planned obsolescence, but it is more likely to be found in kitchen and other household appliances.

Even after 10 years my computers did not fail with the exception of a graphics card and a hard drive in a total of 25 years as well as 2 printers and a number of mice.