The concept of "outdated" is imposed by big tech itself through artificial restrictions. Apps are forced to update their minimum supported OS versions. Upgrades are stopped after 1 or 2 years. And so on.

Anyone who has replaced Windows 8 or Windows 10 on their 5+ year old machine with a distro like Xubuntu/Lubuntu realizes that "outdated" is often a sales propaganda term, not necessarily a technical term.