Yes. There is a Flat Earth Society too. It spreads dumb false notions about what most Flat Earthers believe.
Someone else brought up the notion that nobody has ever explained how the seasons work on Flat Earth.
You can go to Bitchute and put in "Flat Earth Seasons" and find a number of videos explaining it.
Try to do the same search at Youtube and you'll only find NASA based debunkers.
It's the same story with 911, covid facts, "gender theory", evolution, etc. etc.
After the original founder of FE passed away (toward the end of his life, his home somehow burned down and he lost nearly all of his materials related to FE), some other mysterious fellow swooped in and rebooted it. Most FEs believe that the guy is a government disinfo agent.
You're correct, that the behavior of the search engines with regard to FE is the same as with other cօռspιʀαcιҽs they're trying to suppress: COVID jab, 9/11 truth, etc. FE even has a more specialized treatment from Google and Youtube. If you DO find an FE video, they stick this "disclaimer" tag at the bottom denouncing Flat Earh. They don't do that even for these other issues. In fact, I go to the Youtube search engine, and put in not only the term "Flat Earth" but even the exact name of the youtube channel (in cases where I know it) and the channel STILL doesn't come up in their search results. It's ridiculous.
With these other issues two, one of their favorite tactics is controlled opposition. So, for instance, they let Alex Jones enjoy a certain amount of notoriety ... but then took out William Cooper (whom Jones effectively ended up replacing). Jones is actually Bill Hicks, who was brought onto the alphabet payrolls to become Alex Jones. They let part of the truth out ... for audiences that already know it, so that the gatekeeper could keep them away from certain other issues due to the credibilit he gained from exposing some of the others. So, for instance, Jones has been covering for the Jews his entire career. He keeps talking about "international bankers" but but then dismisses and ridicules anyone who mentions that those bankers happen to be Jews.