No, "you don't" is a valid answer. You use what is in the distribution. You chose the combination of archives (stable, stable+backports, and so on...) as you need.
Then you use what the distro provides.
(The same way as you use the default, tested and guaranteed engine computer on your car rather than installing one bought in a dark alley.)
Like the car, distribution work when you use the whole set of components bundled and tested together.
If upstreams make it difficult to package new version you can help by asking them to step up their game or switch to a better software.
If you want to build a Frankenstein bundle of software you are free to do so but you'll be on your own when things start to break.
