Run power threshold

I am new to running power since the updates on Garmin. Not my main tool for measuring performance but I do keep an eye on it to learn and see if I can use it in the future. Since I am new to it, I get alerts from intervals and Today’s Plan for new threshold values. Intervals estimates my FTP at 347, todays plan at 334. How should I interpret the difference ?

Do you know how Today’s Plan calculates that? Your Intervals.icu estimate is from a 14 minute effort so it should be reasonable.

I do not know and that’s why I was asking to understand it better. Thanks for this info.

The difference is only 4 %. That´s to be ignored.