Seeing this as well for around a month now.

It's still there. Just noticed it in the newest Steam version.

The issue (that is: game is in the list "Completed" while in fact it is being downloaded) is reproducible when Steam appears to be downloading shader updates:

I've just noticed this and came to report it but found this thread. Still happening with latest stable client.
Steam Beta Branch: Stable Client
Steam Version: 1709846872
Steam Client Build Date: Wed, Mar 6 8:28 PM UTC -08:00
Steam Web Build Date: Thu, Mar 7 9:17 PM UTC -08:00
Steam API Version: SteamClient021
Nothing extracted yet.
Your system information
Please describe your issue in as much detail as possible:
If I start removing completed downloads from the completed downloads list, I can see a download progress bar duplicated for the current download.
Steps for reproducing this issue: