I just discovered this and was completely shook.
MacOS (and iOS/ipadOS) has basically a system-wide built-in OCR in all of its first-party content viewing apps.
What does this mean?
It means that if you are watching YouTube video of someone playing through a visual novel or JRPG games in Japanese with lots of of Japanese text, you can pause the video at any time and highlight the text with your mouse cursor just like it was a normal web page. You can highlight a single word and right click to look up the definition instantly, or select the entire sentence and right click it to translate it.
You can also instantly copy/paste the text into Anki to mine sentences from basically any YouTube video.
Also, if you want to read manga in Japanese, try it as a PDF in the preview app! You can literally highlight the text in the image as though it were not an image.
I have looked around and not found any discussion of this feature, so I think it may not be well known in the Japanese learning community yet. But it seems extremely helpful. Sorry if everyone already knows this and I just missed it.