Seriously go back and read the thread, all the details needed to understand the various topics are in the thread.
If CBA just watch this.
https://www.youtube.com/watch?v=u8X76NRiQLQ
Yeah. You are on the wrong side of the fence here on planet no-idea. I suggest you go inform yourself, apologise and ask for a 1-way ticket to planet-sensible.
Adaptive-Sync - A rebaked implementation of an already used Variable Blank feature that was, primarily, used by laptop and mobile devices for power savings. This rebaked version has been discussed by VESA and, at this time, accepted as an
optional feature of the Displayport 1.2a and 1.3 specification.
FreeSync - AMDs propitiatory technology that exists in software and hardware of their drivers and GPUs (Currently a select few 2xx series cards) FreeSync utilises the optional Adaptive-Sync feature of Displayport 1.2a and 1.3. FreeSync is entirely an AMD product that, allegedly, mimics/does the same job as G-SYNC.
Monitor Makers - Conform to VESA standards in order to both use DisplayPort hardware and be able to label themselves as compliant. There is a cost associated with such a relationship but this is somewhat out of scope of this conversation. The vendor can choose to include Adaptive-Sync as part of their monitor hardware and, as a result, claim support for Adaptive-Sync. With discussion with AMD (I presume) they can ALSO claim support for FreeSync. Remember - FreeSync is an AMD technology, nobody else's.
Monitor makers can also release DP1.2a and 1.3 monitors WITHOUT the Adaptive-Sync feature. They are STILL VESA complaint and can be labelled and sold as such. They cannot advertise FreeSync support because they lack the hardware/firmware support to do so.
Intel (For example) - Decide that this whole Variable Refresh Rate thing is a pretty good call. They decide that their new iGPU will support it. Intel code new drivers and ensure their hardware can output to the VESA 1.2a or 1.3 Display Port spec. They finish and polish a product and sell it as DynamicSync. DynamicSync is a purely Intel product that works on-top of the VESA Adaptive-Sync optional feature.
Monitor Makers can now also claim DynamicSync support AND FreeSync support, assuming both companies are happy with such branding on the box (Seems unlikely).
Monitor Makers (Part 2) - Can implement the optional Adaptive-Sync feature in their DisplayPort 1.2a and 1.3 complaint monitors. They do not market them as such, they do not approach AMD for licensing/permission to advertise FreeSync. It should also still work with FreeSync BECAUSE it is DP 1.2a/1.3 complaint and has the optional Adaptive-Sync feature set.
The only way the latter is not true is if Monitor makers have to implement hardware in their scaler to support AMDs FreeSync technology. That or, at the very least, software/firmware based support.
The actual scaler implementation seems relatively unknown. Although from the limited support currently and AMD's "claim" that hardware will cost less to implement it seems to suggest that scaler hardware has to be built around FreeSync or certainly with it in mind. Which would be an awful shame.
In an ideal world any VESA DP complaint monitor with the Adaptive-Sync feature should support FreeSync out of the box. The cynic in me thinks - No chance. AMD don't want people buying monitors that support Adaptive-Sync and, by extension, FreeSync and not having thier branding plastered over the box. How they control this will be interesting. Whether it is a SupportFreeSync=1 flag in firmware or a physical hardware gate keeper.