Free VPS offers give you a hosted server to run trading platforms or expert advisors without latency, usually on the condition of a minimum deposit or monthly trading volume.
Exness
Exness gives a free low-latency VPS to clients who keep at least USD 1,000 in their accounts (or USD 500-999 plus USD 500,000 of 30-day trading volume) and keep trading from it.
FP Markets
FP Markets covers the monthly cost of a low-latency forex VPS once you deposit at least 1,000 USD and keep trading enough lots each month, so your Expert Advisors run 24/5 without a hosting bill.