Hello, @Tayler Odling, of course if your data is important for you, keep it in multiple places, I recommend to have at least three copies of it, save it to two different types of media and at least one copy offsite.
About Microsoft OneDrive, my point of view it is as safe as any other storage, but you should not rely only on one spot, though it provides encryption.
Please, find great tips on OneDrive data safety and a list of the common mistakes that can influence your cloud security here: https://www.nakivo.com/blog/microsoft-onedrive-security/
Let me know if you need any additional assistance from me. I look forward to hearing from you, Tayler.