It definitely came from a laboratory. - yes, this seems most likely.
Why are media and governments not discussing this? - because our governments stand to gain additional powers by keeping us in the dark over its origins.
If Government tells its public Covid came from a lab, then the obvious answer is to punish the lab (China). But that would be risky because China is very powerful with a huge standing army and nuclear weapons, plus the Chinese Communist Party won't be told what to do and ignores all other governments.
Western governments have contingency plans for dealing with pandemics. But they ignored those plans and instead watched China (a dictatorship) enforce lockdown on its oppressed citizens. And Western governments wanted a bit of that.
It's much easier for Western Governments to keep the populace in the dark over Covid's origins, that way the Gov avoids potential conflict with China, plus enables itself to get a whole raft of additional powers (national lockdown, masks, social distancing, 'the rule of six', etc.).
Roll on June 21, lol.