Isn't Islamic marriage risky?

I've been to Islamic marriage workshops and watched a few videos on YT and the general advice summed up is: speak with a Wali, figure out compatibility, and get married soon (2 weeks - 1 month)

However, this seems a little problematic especially in the West. When you speak to a potential spouse with a Wali, both sides will be holding back. It's a bit uncomfortable when theres a guardian right next to you and you can't really be yourself. And assuming you two are "compatible", you don't really know how someone is until you live with them. There's also the risk of the other person hiding things or acting like someone they're not.

How do you get married to someone in such a short time frame with a few conversations?