Yeah I'm sure most commercial airliners are the same. Apart from maybe the Super-Heavies; I hear that there are dozens (hundreds?) of 747s and A380s sitting around doing nothing currently because they're too expensive to fly.

Those 747s and A380s are only sitting around not flying because of the pandemic. And it seems likely that many of them will never return to flight again at this point, except maybe after being modified for cargo hauling.

Prior to the pandemic, if you had a flight-worthy plane of any size, you were using it continuously. Once a plane was no longer being used continuously it was likely about to be permanently retired.