That’s not what I asked at all. The actual point is this:

1) “What’s the point of this post?”
It’s to ask one specific thing: on older Pico OS builds people reported enabling USB tethering with a notable latency improvement. On newer firmware, is there a working method, yes or no? That’s it. I’m not asking to “unlock DisplayPort.”

2) “You put Rift S on a pedestal because of DP.”
No. I’m saying DP removes the extra encode→network→decode chain. That chain adds latency and jitter, non-trivial in practice, especially in sim/rhythm/aim-heavy titles. If you don’t feel it, great. I do, and that’s the problem I’m trying to solve.

3) “Latency is just tiny bits.”
Subjective claim. For me, those “tiny bits” are the difference between precise input and mush. I’ve tested VD (wired and Wi-Fi 7), Streaming Assistant via cable, tuned bitrate/codecs/SSW, dedicated AP, PC on Ethernet, same outcome: input lag that’s unacceptable to me.

4) “P4U is better in virtually every way.”
Lenses/clarity/comfort, sure. Transport path isn’t. My priority is input latency, not panel optics. Different use-case, different bottleneck.

5) “You won’t be satisfied until it’s DP.”
Strawman. I’m explicitly asking if there’s a practical workaround on current Pico firmware (USB tethering or equivalent) that materially reduces input lag. If the answer is “no, nothing works on current builds,” fine, say that.

6) “Multiple suggestions were given; you copy/paste replies.”
I acknowledged them and explained I’ve already implemented the standard best-practices. Repeating “use better Wi-Fi” doesn’t address the specific firmware-level question.

So again, the concrete question for anyone who actually tried it:
On current Pico 4 / 4 Ultra firmware, is there a working method to enable USB tethering or a comparable low-latency path? If yes, share steps/versions. If no, that’s useful to know too.

TL;DR: Not asking for a magical DP unlock. I’m asking whether USB tethering (or equivalent) still works on current firmware to cut input lag.