To Sunardi Makin,
You can use both, as both XM and FBS have their respective advantages and disadvantages. In terms of trading services, both brokers are almost the same, both in terms of minimum deposit, minimum lot, and platform. The difference may lie in the higher leverage of broker FBS and the fixed rate of Rp10,000/dollar which is not owned by broker XM.
So, if your trading requires high leverage and a fixed rate, FBS could be a choice. If not, then both brokers can be tried. It is good to try directly in a demo account because this service is free so you can find out the services of both brokers without spending a penny. The important thing is to choose the one that is most comfortable and suitable for your trading conditions.
For a direct comparison, you can see FBS Vs XM table
Thank you