YouTube's advice to creators is to do exactly this - post the video privately to let the algorithm and potentially the human review go through before making it public.
Sadly, since this process can take up to 48 hours, this doesn't work if your videos have any kind of time sensitivity.
It also doesn't help with videos of streams, which are automatically posted immediately after the stream's conclusion.
It also doesn't work - uploading a video privately passes monetization, uploading the same video pubically has the video monetized. It's completely arbitrary.
Sadly, since this process can take up to 48 hours, this doesn't work if your videos have any kind of time sensitivity.
It also doesn't help with videos of streams, which are automatically posted immediately after the stream's conclusion.