I second this. Long time CCC watcher and enjoyer, but it could really use an update. It has so much potential, and I think if chess.com pushed it a lot more people would become interested.
Computer Chess Championship missing from chess.com app, et cetera.

I had been following a recent competition among Stockfish, Lc0 and Torch. But one day I visited CCCC page and noticed not only that competition but also some other recent tournaments also vanished.
Update: nothing to share yet so far as the app or website go, but the long-awaited new backend for CCC 2.0 is now in testing! Here's hoping the integration goes over well. It looks like they've found and worked to address a lot of issues so far (we're currently at testing part 9).
I had been following a recent competition among Stockfish, Lc0 and Torch. But one day I visited CCCC page and noticed not only that competition but also some other recent tournaments also vanished.
External links seem to be blocked, but try the !database command in CCC's Twitch chat to see if you can find the missing games in there. It's been a bit since I've seen 22.5 around, so I'm not sure when the last database update was, but everything before said last update should be included in 22.5's database, including some old tournaments that had gone missing from the main site last I remember checking (this is another case, in addition to getreide_/truekendor's BetterCCC, where a very interested community member has done some admirable work to supplement what as-is CCC has to offer).
This is some pretty straightforward feedback. Certain features of the website are missing from the app, and CCC is one of them that I would love to see make it onto mobile.
While I'm at it, I may as well give some bonus feedback: the CCC website has not been updated for some time, and interested community members have gone so far as to make the improvements we'd like to see themselves via browser extensions. I would love to see some of the improvements made in the BetterCCC extension make it into the base website.
I would also love for CCC to actually get the new backend that was scheduled to go in several months ago, at some point. And maybe for the tournament director to get more direct access to the hardware actually running various parts of CCC, so we don't have to wait as long when something breaks in the pipeline, as has just recently happened? Please let me know what else I can do to influence chesscom to expedite any of these much-needed changes.