Does private relay work with Safari Technology preview

Hi there fwm44,

We'd like to help answer your question about iCloud Private Relay as best we can, but we'll need more details to start:

1. We are unfamiliar with the term 'Safari Technology preview'. What exactly did you mean by this? The more details you provide, the better equipped we'll be to assist.
2. As it contains several details regarding iCloud Private Relay, have you already reviewed the article above your post in its entirety? Here's the link again just in case: About iCloud Private Relay
3. From your post, we see you have macOS 10.14 installed, but iCloud Private Relay(while still in beta) does require macOS Monterey(12.1). If you have a compatible model, here's how to first Back up your Mac with Time Machine, and afterwards, here's How to update the software on your Mac.

Cheers!

If you run Monterey, yes.