I searched the wiki thoroughly, and while the Commanders confirmed joint practices with both the Ravens and Dolphins back in May (from the Dan Quinn page), there's no specific report in the wiki covering Jayden Daniels' performance against Baltimore.
The wiki does have detailed coverage of the Commanders-Dolphins joint practice — where Daniels and Stefon Diggs showed immediate chemistry, with Diggs torching DBs in one-on-one drills and catching a tight-window TD from Daniels (from the Stefon Diggs page). But the Ravens joint practice isn't documented in the current wiki content.
I'd recommend checking recent beat reporter coverage or NFL.com for that specific practice report.