Intermittent Connectivity Issue (Randomly at every 5-10 minutes)

I'm facing intermittent connectivity issues from last ~1.5 months (since I bought the Internet pack). It drops me from zoom/teams calls. I'm barely able to finish my professional work due to this issue.
Despite multiple attempts to resolve the issue through both phone and in-person technical support, the problem remains unresolved.

The technician has visited 3 times, but they were never capable enough to dig down the issue. Everyone changes something and leave saying that the issue has been fixed. 

It's been a couple of days since the last technician visit, and unfortunately, there has been no follow-up or communication from Xfinity regarding the resolution of my ongoing connectivity issues. This ongoing situation severely disrupts our ability to effectively work from home.

The purpose of this post is not to assign blame, but rather to seek a solution. I'm reaching out to this community in the hopes of connecting with someone who can offer meaningful assistance. Despite being a Comcast/Xfinity customer for around a decade, I've never encountered such frustration and dissatisfaction with the service.

When I reached out to one of the support person last week, she was being rude and suggested me to switch the provider - This was very very unprofessional as they aren't able to solve the issue and blaming me for using Xfinity Internet Service.