That's a bit of an overstatement. Booting from SSD instead of SD card has an enormous uptake in performance. I have yet to hear of a Pi 4 that couldn't overclock to 2GHz which is a pure uplift of 25%. Moving to 64-bit PiOS gives another double-digit jump in performance too. Not record-breaking, but not unusable either.
That really stretches the meaning of 'everyday work' quite a lot. The pi is dog slow, even compared to an Intel i9 ;)