Martina Neumayer@kaia You can sandboxit by yourself. There's an app which does it pretty well. I used to use it on the /eOS which is similar to the GOS. it was called AppCloner. Install desired app normally, run it only once just so without importing data. Then clone it and import backup into this cloned one. Should work fine. Use cloned app instead of the normal one, which can be removed now. AppCloner works for many different apps.
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