I have no idea of the actual data, but I believe that percentage in waste plastics of those kinds (PE+PUR+PBAT+PLA) are something like: 95.0% PE 3.9% PUR 1.1

I have no idea of the actual data, but I believe that percentage in waste plastics of those kinds (PE+PUR+PBAT+PLA) are something like: 95.0% PE 3.9% PUR 1.1% PBAT+PLA so, even if these newly found microbes are effective and come into use they probably won't make in practice much a change, and - as you say - every year it comes out some article about research on these microbes (including some with potential for "eating" PE) but no news about them being used industrially.