"Dropping support for things just because they are old" is typical commercial software behavior. I can run the latest Linux kernel and still have access to an internal floppy disk drive if I wanted to, yet billion dollar companies can't seem to manage to support 10 year old stuff.

I still am sore from when I "upgraded" macOS and suddenly support for my 1080i TV was gone. Yesterday it worked fine, today it's gone. All because they can't be bothered to maintain a code path.

Given the mtbf of disks, I wouldn’t risk doing backups on a device discontinued in 2018.

wasn't it capped at 3tb? is the drive swappable to something bigger? They discontinues them in 2018, the wifi in them is old, single disk (no raid).. better to just pick up a multidrive nas or use cloud backups. What we should be asking for is timemachine backends for cloud providers.