Hi,
As far as I know, the network devices can't forbid clients from turning on hotspots.
You can limit the rate of all users so that users with hotspot enabled do not consume more resources.
For configuration, please refer to:
https://support.huawei.com/hedex/hdx.do?docid=EDOC1100169994&id=EN-US_TASK_0176919724&lang=enAnd if the PCs belong to your company, you can disable the hotspot-related services on all the PCs using the network management software.