I'm seeing the information where probiotics can significantly delay antibiotic recovery to a normal gut state, but how long does the process take without additi

I'm seeing the information where probiotics can significantly delay antibiotic recovery to a normal gut state, but how long does the process take without additional probiotics? Also the probiotics are rabidly repopulating the gut... would it potentially be better for some gut repopulation to happen faster at the expense of a longer recovery otherwise? Are these questions that require follow-up research?