

To piggy back off of Arcayne’s comment
I’d recommend setting your sights on the 3-2-1 rule. 3 copies of your data, 2 different mediums, 1 off-site. Hetzner Storage Box is a good cheap offsite option.
I don’t backup everything to a 3-2-1. I at least have everything on a 2-1 backup scheme. Two copies, one offline. My personal photos and videos are on a proper 3-2-1. I can redownload my movies and music. I can’t retake pictures from my childhood. It saves a lot of money doing it that way. My personal media is less than 1 TB, whereas my whole collection is many TB and would be prohibitively expensive to 3-2-1.
Some plastics cause cancer, others seem to be completely ignored by biological processes. Plastics range from cellophane which is basically just cellulose fibers chained together to Teflon which is basically entirely man made. It all depends, but generally speaking, plastic in the microwave is bad.