Good day Collin
Thanks for posting in Microsoft forum community, it's my pleasure to assist on the above query,
It sounds like you've already tried a lot of troubleshooting step and still issue persist, including reproducing the issue via team's web browser https://teams.microsoft.com/v2/
As its affecting both teams' app and teams web browser, it might be bug that can be fixed from the backend, we suggest you involve our online technical support team to further investigate on this. Please collect MS Teams Support Log Files and Weblogs, these logs will assist in further investigation from the backend it, the technical team my request it to fix the above bug. Collect log files for monitoring and troubleshooting in Teams - Microsoft Teams | Microsoft Learn
Please understand that we don’t have higher permissions to check and analyze these logs and considering your scenario maybe inconveniencing, to quickly help assist, kindly contact your organization admin or you can create a service request to report this symptom to our online channel through the O365 admin center if you have the permissions. Our dedicated channel can further connect with you remotely, for further troubleshooting and involve the backend team where need be. Get support for Microsoft 365 for business -- Online support.
In the meantime, I would also like to invite community members and MVPs in the forum to share their knowledge or any workaround and insight on this topic.
Your patience and cooperation are much appreciated.