legacyScreenSaver taking 67GB on disk -- OK to delete?

I noticed something called "legacyScreenSaver" takes 67GB on disk and feel it’s too much for me. I looked deeper, and I found that it's actually for the screen saver I do use, Aerial. It's in /Users/[user]/Containers/legacyScreenSaver/Data/Library/Application Support/Aerial/, and 59GB of that 67GB is in a cache I'm using a different screensaver. OK to delete legacyScreenSaver?