Greg joined the trend of showing off your default apps, which I did a few days ago as well. But Greg’s is a bit different in that he uses the default apps for his system, and then apologises for it.
There should be no apology from anyone for using what works for you and just getting work done. Greg is currently not falling into the trap of finding new applications and thinking that is “being productive” when it’s really just shuffling deck chairs. I wish more people used the default applications, or at least found one that works and then stopped looking.