This rewrite looks interesting. Has the team taken the opportunity afforded by this rewrite to fix any of the open bugs listed at task T305628, task T276675, task T286355, and task T306216? Jonesey95 (talk) 21:22, 28 November 2022 (UTC)
Topic on Talk:Parsoid/Parser Unification/Media structure/FAQ
The work resolved a number of inconsistencies between the two parsers, as well as some fixes to each parser individually.
However, the two tasks that I filed (T305628, T306216) that you're referring to are about the file syntax in wikitext (specifically media option parsing) and, unfortunately, the changes here are more about eliminating rendering differences between the parsers.
I looked into T286355 and the issue seems to be with the difference in resource limit protections between the two parser.
Reconciling those differences is on the path the parser unification, so something the team will need to work on.
T276675 is something I could fix but it seems some feel the current behaviour is desirable https://phabricator.wikimedia.org/T276675#8022625