Here's the Wikipedia entry:
QAnon In a nutshell, it's a conspiracy theory that started on 4chan and spread to Reddit, YouTube, etc. It's key elements seem to be that (i) various political, economic, and cultural elites (mostly but not exclusively lefties) around the world have been conspiring to control America and the world for decades, (ii) Obama, the Clintons, George Soros, etc. are all key players in that conspiracy, (iii) a major activity of these conspirators is, for some reason, maintaining a global pedophile sex-trafficking ring in which thousands of elites are involved, (iv) a military coup was on the verge of taking place to finally put an end to it all and "restore the Republic", (v) but fortunately, Donald Trump was apparently recruited instead (by top military, intelligence, law enforcement or whoever - it varies) as a rich and powerful outsider who could bring this house of horrors crashing down without the need for a coup, (vi) Trump and Mueller are thus secretly working together, with Mueller actually investigating the elite **** instead of Trump, and all the antagonism and apparent disarray in the Trump Administration is just a show to throw people off until it's too late, (vii) numerous elites have already been placed under house arrest, or otherwise secretly indicted, and (viii) everything thus far has just been the calm before the storm, and when Trump and Mueller are finally ready, they'll act decisively to sweep up all the pedophile elites and their allies in one fell swoop via mass arrests of thousands, resulting in predictable riots and attempted coups that will ultimately be put down by Trump and his allies / sponsors among the military.
Beyond all that, there are various even crazier offshoots - e.g., that JFK Jr. is secretly alive and he's the "Q" who's been leaking all the supposed intel that led to the QAnon theory in the first place, that Clinton and McCain were both already secretly indicted and wearing tracking devices around their ankles to keep tabs on them and McCain's death was faked either so he could escape or as a cover for his imprisonment in Gitmo, that Kim Jong Un is actually a CIA plant either working for Trump to help distract people from the "real" Mueller investigation or or working against Trump as a member of the Deep State to start a war and help set Trump up for a coup attempt, etc., etc.
I hadn't heard of QAnon until recently, either, but once I started reading up on it, it was amazing how closely the core elements of it mapped to what Rynar's been saying. Whether or not Rynar considers himself an actual follower of the QAnon theory, his views definitely seem aligned with a lot of it.