Could you introduce 10th of seconds on the clock for games?

When the clock runs down and reaches critical you see a countdown when you’re seeing 10ths of a second while in single digits. Why can’t this feature be implemented on the primary level during games?

It's an option in the settings. You can change it there to behave like that for the whole game.

You can change the behavior in settings.
lichess.org/account/preferences/chess-clock

I personally don't fancy this tbh. Very distracting for me.