Adware in MuseScore 3.6.2

I loaded MuseScore going to start transcribing a piano piece, and I had the website "mc.yandex.com" load into my browser (adblocker blocked the website though), and I thought it was weird. I'd had the webpage randomly load once before. I restarted MuseScore, and it happened again. I proceeded to do it four more times to make sure it was MuseScore. I also went through my task manager to make sure it wasn't an application pretending to be MuseScore.

Here is a video of MuseScore doing this (excuse the long load time, I have a good amount of SoundFonts):
https://www.youtube.com/watch?v=LRvFTG1he5c

EDIT: Figured I'd put the timestamp where the website shows up. The timestamp is 1:28.

EDIT 2: Maybe not..? I searched the code repository on GitHub, I have no idea how up-to-date it is, but I didn't find anything. I might be wrong? I really don't know. Can I get your guy's opinions?

EDIT 3: I HAVE FOUND THE SOURCE OF THE PROBLEM! It is the the MuseScore website(s). The MuseScore application loads in the website on the new score screen/menu, and there is code to load "yandex" in both the MuseScore.com and MuseScore.org websites. Don't be suprised if this website loads when MuseScore loads. Attached are pictures of said code.