In most cases, this only a concern to help you hide from your provider and probably not causing your present issue. If your using google, clouldflare, etc. for dns, then I wouldn't trust anything and find a dns provider you can trust. They all talk to each other.
Great suggestions here already.
Another possibility could be a "DNS leak". There are many online 'testers' to check for this. IE, https://dnsleak.com
I worked alongside a couple of super woke engineers a few years ago that went to that shithole. I told them that was a stupid idea, they laughed with their iditoic superior, better than thou, laughs. Oh yeah, I'm fuckin' rolling right now.
I didn't just stock up on food the past couple years.