Crunchyroll is evil. I cancelled my subscription when I was lacking closed captions on english dubbed content (for a show that didn’t even have other audio available) and when I looked into their forums a staff member replied “We’re an entertainment service not a language learning service”, completely ignoring hearing impairment exists.
When I started hitting OOMs I just downloaded free ram.
(Modifying my zram-generator config to use 1.5x my ram size instead of the measly 4GB – uncompressed – default. Seriously it’s worth looking into, though default depends on your distro)