It is true that there is no video that shows in detail the significant changes in McGregor but at least there have been some changes in McGregor physique in recent years while he was not a UFC fighter.
It should be noted that McGregor uses several of these drugs according to doctor recommendations or supervision so there is no prohibition against their use but after deciding to return to fighting he has carried out several tests and even given up all types of drugs that he previously consumed.
Concerning McGregor physique he experienced changes because trained more often and went to the GYM to develop his body muscles and for almost three years he retired from UFC so he focused on healing the injuries he experienced and with some time this was enough to make the changes.
There is nothing wrong with McGregor and he can still continue fighting as stated by Dana White as UFC president.
It is great that Conor McGregor Physique is changing rapidly and for sure it looks very good to him but if the allegation of taking a drug substance to increase his body mass is true then it could be good on the outside but for Conor McGregors Inside it is fatal,
He has passed the test and he is also ready to follow the procedures as UFC fighter who will re-enter the octagon in his first fight at UFC300.
Regarding the accusation of using drugs that affect muscle mass in McGregor body this is actually not an issue because for muscle mass the most effective drug is steroids and the accusation that was attached was about the use of illegal drugs or doping to speed up injury healing but when the accusation was revealed McGregor did denial and has provided full clarification.
I think everything has gone perfectly and there is not the slightest problem that would make it difficult for him to fight again.
Don't we also miss McGregor controversial style in the octagon?