I have an old 2012 Macbook Pro 13in. At what point will I stop getting macOS updates?

I have an old 2012 Macbook Pro 13in. At what point will I stop getting macOS updates?

According to How-to Geek

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Currently, my Macbook uses macOS Catalina. If I don’t get Big Sur, will I continue to get security updates from Apple in perpetuity? or does it mean I have to scrap my Mac in a few years because it’s not patched for new security vulnerabilities? Thank you!