You did not even describe what problems you're having. I now saw it in another thread which you didn't link to.
Almost the only issue I've had with 1709 (and solved) is low performance when having many windows open, due to some new anti-exploit techniques implemented. I recommend to disable
Control Flow Guard, especially if you're dealing with graphics-heavy software. Otherwise rendering may become very slow in various apps.
Another issue that may be related to the latest updates (initially it worked on 1709) is that Hyper-V got broken, and its dependent "vmcompute" service won't run, no matter what I do. I've met at least one other dude with this exact problem, but he says that rolling the updates back doesn't help. This problem is new to December 2017.
I have already had two Wormers install the update. One of them reported only one issue with running the game which he resolved himself. He felt that the game was not running in exclusive fullscreen (which I couldn't independently verify), so the framerate was lower. He says he got it resolved by enabling "Disable fullscreen optimizations" in WA.exe properties. (I've mentioned this option before)
The "black screen issue" when v-sync is disabled has been confirmed to be fixed in 1709.
Other than this, the highlights I personally found useful in 1709 are: "placeholder" files support on OneDrive (which were last seen on Win 8.1 and then temporarily removed over dubious reasons) - where certain files are shown in your Explorer but actually are stored remotely and can become available offline at will, GPU Usage display in Task Manager, support for mounting external and non-NTFS drives on the Linux-on-Windows subsystem via drvfs, and a battery performance/capacity slider which I use on tablet.
Anyway, this is expected with recent Windows updates. The Fall Creators Update was released quite broken as said on various blogs. They still haven't fixed the issue where the cursor jumps to the corner of the screen when selecting multiple files in Winrar or 7-zip and scrollbars are present. In the end, what you see will of course depend on your software and hardware, some hardware drivers may be sensitive to the update more than others. I would expect them to gradually fix the issues in the next 4 months.