JavaScript private fields

I have watched the “JavaScript Course - Part 2” and Mosh used Symbols and WeakMaps to declare private members in JavaScript classes, but today JavaScript supports “private fields”, and i think it’s more legible.

But I don’t know if it’s good practice to use it, since it looks like older browsers, safari and firefox don’t support it, and maybe babel doesn’t support too.
Should I use this private fields?