As someone who has followed various forums and the internet reviews since I bought a Sony A7 II six years ago (if I remember correctly), it is fairly obvious that Sony has a very well organized internet and reviewer community. Whether Sony itself is involved in the organization or it is purely fan driven I do not know, but I would argue that the popularity of the Sony A7 cameras is due mainly to this organized propaganda campaign. They have completely dominated the social media environment and it has paid off.
I, personally, have no stake in Canon or any other camera brand - and I do not root for companies as if they were sports teams, but I do appreciate honesty and integrity - two things that are totally abused by this Sony propaganda network. Anyone who has followed this forum for even a few months will notice the large number of Sony trolls. They are on every forum I visit. Immediately downgrading any Canon product. Arguing with any positive Canon comments and then accusing anyone who does appreciate Canon products as being a naïve fanboy. As soon as any Canon (and Nikon, too) camera comes onto the market, there are a dozen or more YouTube reviewers who put the camera down (in comparison with Sony, of course). Many of these reviewers repeat the same lines over and over. The quick release of these reviews clearly demonstrates that the reviewer did not have sufficient time to actually learn how to use the camera. Thus, combined with the Sony trolls that are in all forums, I consider this effort to be both organized and consider it propaganda. Because the reviews are not honest and the trolls are not honest either, I find that I do care - and that I try to call them out whenever possible.
Why, because dishonesty and a lack of any integrity shouldn't be rewarded - and it clearly is. I have read comments from new camera buyers that basically say, "I didn't know much about cameras, but based on the reviews on the internet, it was clear that Sony makes the best cameras." It was based on forum comments 6 years ago that I almost sold my Canon 6D and switched to Sony. At that time I was new to internet forums and it did not occur to me the amount of total dishonesty and the number of trolls that existed on them. All I read over and over was how Sony was so far ahead. I'm sure there are many other folks in the same situation today. Luckily for me, I didn't sell my 6D and was able to return the Sony (it couldn't even replace my Olympus E-M1 in terms of quality.)
There are, of course, some honest reviewers - usually established photographers that have both integrity and experience. And some of them do praise Sony, of course. Since most cameras today produce relatively similar results, this is no surprise. But, as I've mentioned in other posts, having more specs does not make a camera better than another - especially if those specs are half-baked and don't work well. (That is my experience with Sony - impressive spec list and poor implementation of almost all of those specs. Of course, that is how they can keep the price down.)