Some carriers (notably Verizon and AT&T in the US, and Jio in India) actively monitor for "tampered" radio parameters. If the module tries to force a VoLTE profile that doesn't match the carrier's IMS database, your IMEI could be temporarily flagged, resulting in a data throttle.
# Terminal with su settings put global preferred_network_mode1 11 4g magisk module exclusive
Unleashing True Connectivity: The Ultimate Guide to 4G Magisk Modules Some carriers (notably Verizon and AT&T in the