I've honestly not noticed a worsening of twitter's availability since the previous guys stopped being in charge. Perhaps many of the removed jobs were in non-technical areas of content moderation.
They had a ton of downtime on multiple occasions last few months. This wasn't the case in 2022 when I got on almost every day to check on the Ukraine-Russia war news.
Now I don't spend as much time on it because Twitter actively pushes its politics and hides Ukraine-Russia war content. I often check out stuff on Mastodon since it doesn't have a biased algorithm