The Magisk module you linked is using fusermount binary from this thread which is built for Termux environment. But LD_LIBRARY_PATH environment variable is not being set properly in the module, so the error occurs. A simple approach is to use static fusermount binary, I already posted in the same thread.
rclone uses FUSE which you can mount manually from CLI ...
I had the same problem and I think unchecking the "make recent files available offline" setting in the Google Drive app did the trick.
I'm using Google Drive v2.20.261.01.40 on a Google Pixel 3a with Android 10 (build QQ3A.200605.002).
The applications that was not restored does not allow backup (android:allowBackup="false"). Which mean that your backup will not contain these applications even after restoring in another device.
You can check that by following these steps:
Install one of the concerned Apps in your new device
Enable USB Debugging
Run this command (using ADB):