Many Androids stop receiving updates after just two years. I don't know if it affects the browser :) However, there are also many users who don't update either

Many Androids stop receiving updates after just two years. I don't know if it affects the browser :) However, there are also many users who don't update either the OS or the apps (because they don't know what it is, afraid it will break, afraid it will change functionality etc. )