Zoom Meeting Drops during First 3-5 Minutes of Meeting but Works After

This is a more complex issue but I’ll try to organize as much as possible. One of my users moved to a new office a year ago but a couple months ago, they started noticing their video/network freezes in Zoom for 30 seconds ALWAYS during the first 3-5 minutes. This generally happens in one-on-one meetings but not in group meetings. We’ve clean reinstalled Zoom, updated Intel drivers and made sure all Dell drivers are up to date. Device is a Precision 5570 with Intel Wifi 6e AX211 NIC w/relatively good specs. 

The issue only happens in Zoom and not Teams. It happens both wired and wirelessly in this office even on mobile hotspot within that office. Issue doesn’t happen WFH or any previous offices the user has been in. We’ve tried a different laptop and nearby hotel station both wired/wireless and issue still persists. So far the issue has only happened for this user, no one else in that same office.

We don’t have any outbound rules for traffic leaving the office firewall. Any potential ideas or next steps?