as i mentioned, based on the last rclone mount log you posted, the mount is working
The service rclone has been started.
what is the exact problem with the mount?
looks like the mount is not the issue, as every command has Couldn't decode error response: EOF
tho, each command works.
based on this, might just ignore that error
https://forum.rclone.org/t/rclone-b2-debug-message-eof/24167