I’ll start by plugging Harvard’s free courses catalog as well as Udemy
Edit: Gonna add 2 more I remembered-
Blender - I wish I had more time to learn it, but I did start the infamous “Donut Tutorial” once!
Watch Cartoons Online - Lots of good older stuff!
Actually, Audacity lost this status when Muse Group bought it out. There was a huge community fuss over this especially in /r/Audacity when the company started adding data-tracking to it, and the protests eventually died down because they just kept muscling through their decision like Reddit did with its changes.
I still use Audacity, to be fair, but may consider Ardour that another user mentioned here…
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