looking at doing a combo of onedrive and backblaze b2 but have questions

I want the onedrive because I want cloud hot storage and the ability to host only in the cloud i.e offload from my local machine. but want backblaze b2 for multiple redundant copies of data in different geographical locations. I also want to use a service that will provide end to end encryption of all the data, only decrypting after being synced to my client machine. I believe there are tools for that that are able to be integrated right into windows file explorer right? There are some limitations I think like what about linux and onedrive compatibility, but does this seem like a good approach? I read a lot about mega as well but not sure how that would fit in here.