[2020] Will using WTFast to improve latency get me banned on Apex Legends?

Hey, as far as I'm aware we don't have a specific official stance on this service, but I don't see there being an issue with it. Many players use VPNs and don't have issues (I hop between my own network and my work VPN constantly), and anti-cheat protections would be focused on cheats rather than efforts taken to optimise their connection.

I've seen players discuss using it here in the past, and as far as I'm aware there haven't been any account actions taken in relation to this.

Hypothetically use of a VPN may lead to an account being blocked if it looked like an account has been compromised, but I can't see that being a factor here.