Both of these companies are huge in the mini PC space. Most people have never heard of them because all they do is mini PCs.
Minisforum latest 7940HS lines are better than M2. More powerful, fairly close on power efficiency, better GPU, cheaper, and without all the nonsense that comes with buying Macs. Their fully juiced model is $800 (and doesn't lock you in to a model that milks casb from you like a sow).
It isn't. As the Reddit link explains, the only benchmarks it wins in are synthetics.
You can play Red Dead Redemption 2 at 1080p at over 60fps. You can produce all the synthetic benchmarks in the world but this is as powerful as a console. This is the most powerful iGPU out there, it is about as powerful as 1060.
There is also the fact that the AMD CPU is newer, has a 50% higher TDP, and is built on a smaller node, but is far from providing 50% better performance than the M2 [0]
On the other hand, I don't own a Mini, nor I'm on the market for a mini PC, but I don't feel like dropping $800 for a prebuilt PC unless they provide stellar support and warranty, and chinese OEMs aren't really known for that.
I'm not sure what Beelink is supposed to be mistaken for. I only know them for their micro-PCs and I'm not familiar with another brandname that it is supposed to remind me of.
I hadn't heard of Minisforum though. But the same goes there - not sure what is is supposed to be mistaken for.