Guys, I think I found the solution to desync, audio cracking, popping and latency issues!!!!!!!
This evening I started to notice desync in Edge too. It was really going on to my nerves, so I have decided to try some more driver updates. I updated diferent drivers manualy in Device Manager (right click and then "Update driver"). However, that didn't solve the issue.
Then, I opened the "Storage controllers" section in Device Manager and there where two devices: "Standard NVM express controller" and "Microsoft storage spaces controller". I then right clicked on "Standard NVM express controller" and then "Update driver" , "Browse my computer for driver software" and "Let mi pick from list...". I then browsed into folder of the Intel IRST driver (c:\Drivers\Intel IRST Driver\Source\), and selected the first file. That was the Intel IRST driver downloaded from Lenovo support page for our laptop. After selecting that file there was "Intel Chipset SATA/PCIe RST Premium Controller" to select and install instead of "Standard NVM express controller". There will be message that it might not be compatible or something similiar, but just go with it. I then restarted laptop, and everything was working! No latency in LatencyMon, no delay in Chrome or Edge, even Latency Checker shows no more red bars!
I tested it only for 30 minutes, but I'm sure it solved all the issues. Maybe some other driver updates did the trick, but I think the one explained above did the trick. Just in case, I'm gonna post all my drivers in HTML again. Also, fast startup is off, but I don't think that matters too.
Please try and report back!
Link to HTML file with all my drivers: https://www120.zippyshare.com/v/drit3Ovr/file.html