Easiest way for basic two backup plan is to schedule it slightly later. Only one job runs at a time…
The advantage of having two jobs is that if one backup breaks, you have another backup to use.
For less redundancy, Questions about destinations, rclone, scripts and jobs details how to sync.
Tools vary, of course, and you don’t name your cloud storage, but rclone can cover a lot of them.
There’s no GUI, unlike some sync tools, but that fits in well with Duplicati GUI ability to run script.
If you prefer to Export As Command-line to script a different-destination variation, that works too.