So, the thing is that internet gives you a freedom to select what you actually want to see. But most consumers have inherited television and radio habits, and consume the internet in the same way. That beeing going on the most known media platforms and just beeing fed what the algorithmes send. These platforms live out of monetisation, and the toolbox to achieve that has grown with time. Bots beeing part of it. If you feel like you are confronted with too much bots, reposts and click-bait, question your consumer habits. The algorithms job is to guess what you want, they feed on your habits. Change your habits to change your experience of the web.
You could try out BunsenLabs, it’s loads of fun and reasonably lightweight. Basically Debian with a few tweaks.