soanli patil Greetings & Welcome to Microsoft Q&A forum!
The Azure IoT Edge Metrics Collector module is designed to collect and forward metrics from other modules running on the IoT Edge device. It can collect metrics from modules that expose Prometheus-style metrics endpoints, and forward them to a metrics endpoint of your choice.
However, the Metrics Collector module is not designed to monitor the Blobfuse file system on your IoT Edge VMs. To monitor Blobfuse, you may want to consider using Azure Monitor, which can collect and analyze metrics and logs from a variety of sources, including Azure resources and custom applications. You can use Azure Monitor to collect metrics from your IoT Edge VMs, including metrics related to Blobfuse, such as file system usage and performance. Please see Collect and transport metrics for more details.
Hope this helps. Do let me know if you have any further queries.