Antibiotics will likely become obsolete when you can target bacteria without the bystander side effects they have on our cells. They are the perfect antibacterial smart weapon really.
https://medcitynews.com/2020/01/adaptive-phage-gets-10-from-...
These may be the first in the USA. They were mainline therapy for certain indications in the USSR since the 1930s are are still in use in the former USSR today.