The real issue is the concentration of power. WeChat is the gatekeeper and moderator of basically everything in China. They decide what apps and services are allowed to be successful. If they see something doing well, they have the data and the control to make a copy of it and replace the original with it. Sort of like Amazon does in the retail space.

Elon is working on replicating it now with “X”. He’s already said he wanted something like that for the US

I use backupninja for the scheduling and management of all the processes. The actual backups are done by rsync, rdiff, borg, and the b2 tool from backblaze depending on the type and destination of the data. I back up everything to a second internal drive, an external drive, and a backblaze bucket for the most critical stuff. Backupninja manages multiple snapshots within the borg repository, and rdiff lets me only copy new data for the large directories.