AVI file editing
AVI files are very common. Many cameras record in AVI. Premiere Pro on Mac should support editing of AVI files. I have hundreds of archived videos that I edited in CS6 that require extensive work because Premiere no longer works with AVI files. New versions should increase compatibility not decrease.
Thanks for your feedback! Unfortunately, this is the UserVoice forum for Adobe XD, not for Adobe Premiere Pro. You should file your idea here: https://adobe-video.uservoice.com/forums/911233-premiere-pro