After lots of tests, I ended up with this design.
It's just another "Bottle Cap Opener".
but:
Prints without supports
0.4 nozzle
0.15 layer size
15% infill
I've printed in PLA and it works perfectly.
PETG or ABS are surely more durable.
[19.09.2022 Edit]
As seen in many comments, in some world regions (Germany for instance) a scaled version works well, then I directly added a 110% scaled STL as suggested by sherlocked.
let me know in the comments your region and which version works for your bottle caps.
The author hasn't provided the model origin yet.