satoshi has no control of bitcoin network. there is no backdoor that he has access to a government cant do anything about it if he was found. there is no threat or harm
satoshi is not hiding due to any threat of government grabbing him. he just didnt want to be seen/treated as a central reference point back in 2010 because some people were blindly following him, which went against the point of bitcoin
in recent years however, there are 3 people that do have the github control of the main reference client software upgrades, which pretty much everyone blindly follows.., they are publicly known people and yet governments are not chasing them. so this proves that the government are not bothered about gaining control of things like bitcoin core
if the government wanted to grab someone that does have some form of control. it would be those that have the github access to implement new release candidates of bitcoin core. however governments can simply make a court order to hand to github itself to gain access to github. and again this has not happened, thus no real threat.