Resistance and gears
I tried the TP Virtual, liked it, but struggled with resistance settings (non ERG) and playing with the virtual gears/settings.
My workouts as recommended by my coach would be done non-ERG. Compared to Zwift when doing non-ERG workout, I find that being in the same chainring and cogs (around mid way +/- 1 or 2) feels either harder or too easy. And that's when I used the virtual gear. The resistance would feel off and just different coming from Zwift. Not sure what to do but I'd like to be able to use this TP Virtual. Another question is, what is the big power number being displayed at the center showing an average 3s or 5s power? It also appears all over the place and fluctuate more compared to when I am on Zwift. Not sure what to do here, would like to get adjusted to TP Virtual, willing to adapt though any help or comment would be appreciated. I am using Wahoo Kickr Core FYI. Thanks a lot!

Many thanks for your feedback and support for TrainingPeaks Virtual.
The way that Virtual Gearing works on TrainingPeaks Virtual is different to any other platform - in particular, it works with any make and model of trainer, and doesn't need any additionally hardware. This means that it will feel slightly different, but as you note, it's just a question of being in a slightly different gear from other platforms.
The big power number in the centre is the instantaneous power being broadcast by your trainer - if you'd prefer it to be smoothed out so it doesn't jump around so much, then you can already select to display an average over 1, 3, 5 or 10 seconds by selecting that option from the Main Menu > Options > UI Settings menu.