I have a co-worker who purchased a Lenovo Carbon X1 laptop (7th generation). It's a nice, light machine; great potential for a laptop if all of the gremlins can be sorted when running Linux.
Display all devices detected by fwupd:
fwupdmgr get-devices
Note: Listed devices may not be updatable through fwupd (e.g. integrated graphics); download latest metadata from LVFS:
fwupdmgr refresh
List updates available for any device on the system:
fwupdmgr get-updates
Install updates:
fwupdmgr update
Ubuntu 20.04 seems to have fixed the mic and speakers; probably various fixes have made it into the updated kernel versions.