Hotspot Usage when Not using Hotspot | Tidal running slow

I wanted to share my experience in case others are facing a similar issue:

I received a new Samsung S24 in February. Since then, I've been receiving notifications about exceeding my hotspot data usage, even though the hotspot is turned off. This seemed strange.

I reported this to T-Mobile support, but they kept pointing to their system showing I was using hotspot data and advised me to turn it off.

Additionally, I use Tidal for music streaming. Recently, I've been unable to stream music using mobile data as it was extremely slow or wouldn't load at all.

Today, after receiving another hotspot usage message (indicating I exceeded the 5GB cap without using the hotspot), I noticed my Tidal streaming stopped working on mobile data this billing cycle.

I checked my phone's data usage, and it showed Tidal had used over 5GB of mobile data-the exact amount as the hotspot data cap. It seems T-Mobile's system was misreporting Tidal's mobile data usage as hotspot data.

I tried explaining this to support, but they didn't acknowledge it. They reset the network connection to my phone, which seemed to resolve the issue.

I suspect this problem might be related to T-Mobile's "Music Freedom" feature included in my plan, which is supposed to prioritize or differently handle music streaming traffic.