The International Bureau of Weights and Measures standardized using thin spaces as a thousands separator and either a period or comma for a decimal separator.

I recommend not adopting the mindset of using a comma or period as a thousands separator, as all it will do is lead to confusion depending on which country you're in.

An honest question: Do the regions that use a comma for a decimal separator still call it a decimal point?

Poland here - yep. We call it "punkt dziesiętny" which literally translates to "decimal point",even though we use a comma.

Not in the languages that I am familiar with. the big question is, whether it is before or after The Comma. The Comma does not need more qualifiers than that.

No, it's a comma. In Spanish, two point three is "dos coma tres".

Thanks. Removed the decimal separator, since it's surely not important.