InfluxDB V2.6 - Data migration

Hello everyone

Is it possible to migrate data from a bucket of an Influx A instance (VM Proxmox) to another bucket of an instance B (docker)?
If yes how should it be done? Is there a tutorial?

Additional question: I see in all the tutorials that telegraf is associated with Influx but Proxmox sends the data directly to Influx, like Home Assistant or other systems, so is it really necessary to add Telegraf? If yes, why ?

Thanks a lot