It is true that the commission is 0, the details are as follows:

Generally speaking, formal foreign exchange platforms do not charge commissions, only spreads, which vary according to different currency pairs.

If there is a commission during the transaction, it should also come from the spread. For 1 standard lot, 1 point is 10 US dollars. The size of the leverage only affects the margin occupied by the transaction and will not affect the commission, because the two have nothing to do with each other.