The market had a chance to correct itself; or worse, get into a depression (bear market). But that didn't happen. It suggests two things: 1- Either the market is not over-priced and these companies have strong revenues and fundamentals; or 2- The US dollar is discretely hyper-inflating and it's showing only on stocks and other similar assets at the moment.
Sure there is a chance that we are in a bubble (by the way, we have been saying that since 2010. That's over 10 years) but after Covid, I think that fundamentals have changed.