What is viral ‘Nihilist Penguin’ trend on social media that even Trump has joined?

This viral trend on social media features a video of a lone penguin moving away from its colony towards the Antarctic mountains, dubbed the 'Nihilist Penguin'. The meme has resonated with netizens, symbolizing existential crisis, defiance, and a search for purpose. The White House's attempt to join the trend with an image of Donald Trump alongside the penguin was met with criticism due to factual inaccuracies about penguins' habitat.