I have all of my photos in a RAID 1 at home, and I regularly "rclone" all of them to Backblaze B2. I have all of them inside Google Photos because that's how I view them, but I don't consider it to be a backup. It's just a much more convenient way to access the photos from many devices, and share them with friends and family.
Apart from that, I keep a Google Takeout archive the same way (RAID 1, B2)
Apart from that, I keep a Google Takeout archive the same way (RAID 1, B2)