Please do! I use AdGuard Home [0] and the built-in mechanism for "blocked services".
Occasionally I add social media sites (including HN) to the block list.
It's very easy to bypass when I really want/need to, but it does cut down the more unconscious "CMD + T - news/redd/face - enter" moments that happen when I'm bored.
Prevents the occasional unnecessary mindless scroll by creating a couple extra steps.