Hi Andre,
That change in the behaviour of get elements happened quite a while ago about version 16 I think. I suspect It wasn’t initiated by browser library but by playwright that browser library uses, but I don’t know for sure.
This thread might be of interest: Difference between 17.3.0 and 15.1.0 in Get Element
All I can suggest you update your tests to the way Browser Library works now and hopefully it won’t change again 
Dave.