Hello,
you could try Iceland or Shelter
both set up a “work profile” on your phone
Programs in the work profile are isolated from the main profile, e.g. they have their own address book
This should allow the apps to run twice
I use Iceland to keep such apps away from the real address book
To be observed:
I have an FP2 with Android9 + root, it might work less well with earlier versions without root
Data can only be copied between the main and work profile via detours