Detecting SIM card info from Tiktok in android

Tiktok is restricted in Syria.
so I am in another country but I have a Syrian operator's SIM card and I need it.
TikTok stops working on Android whenever I insert any SIM from this operator — works without SIM or on iPhone

I connect to TikTok via Wi-Fi and everything works fine.
But when I insert a SIM card from this operator, even while mobile data is OFF and I stay on Wi-Fi, TikTok stops working.

If I enable cellular data and open a hotspot for my friends, they can reach TikTok through my hotspot but I cannot. Any device that has this SIM card inserted does not work with TikTok — and this happens only on Android.
Keep in mind: the operator has NOT blocked anything (I verified with carrier).

Tests I already ran: Shelter/work profile (same result), VPN (same result), Airplane mode tests, different phones — same behavior for this operator SIM. Without the SIM, TikTok works fine. On iPhone it works fine too.

and I want to mention all data that Tiktok App sends to Tiktok servers is encrypted via TLS.

I want a solution to stop my phone from sending SIM info to TikTok (or another reliable workaround). If anyone has a fix (non-root) or a way to intercept what the app sends, please tell me.