It is important to understand there is a difference between “oven safe” and suitable for use under pressure. And I would not use most “microwave” stuff in any PC/AF appliance.
Otherwise If it fits AND allows at least 1/4 inch (8mm) of space on all sides of the pan to allow for circulation of steam or air, then you should be able to use it.
The exception is most oven safe glass is not intended to be used under pressure (Corning specifically advises NOT to use their products, Corningware, Pyrex, etc, in any type of Pressure Cooker) I found their answer in the Product Q&A area.
It has been our experience that 8 in round offers the most volume of good and the best “thru” cooking. Although some 9in will work- it did not allow enough flow to properly cook the food thru, particularly when baking.
InMySmallKittchen one of my many “off book” uses for the Dehydrator Rack is that one of its shelves makes a very nice low profile trivet to place under pans for better air or steam flow.
The ChefMade tube pan has turned out to be quite the work horse for all sorts of baking and other uses in the 6.5 and 8qt NinjaFoodi Pressure Cooker-AirFryer-Crisper. The center tube nicely deals with the common baking in a Electric Pressure Cooker/Air Fryer issue of uncooked center
https://amzn.to/3sgCU9V
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