UPDATE: so far this is the one and only time this issue has happened to me. Another 3000 mi and it has not happened again. .

There are numerous brand new Tundra owners who are having this issue where the fuel gauge is reading it correctly. Unfortunately, there does not seem to be a fix in place yet and it appears to be affecting 2022 and 2023 model Toyota tundras.
Here I just had my first false reading at almost 12,000 mi. This is happening with both the digital and analog gauges. I hope Toyota finds a fix for this soon because this is a pretty big safety hazard.