Long time Pixelmator user on the Mac, new Pixelmator Photo on iPadOS.
As one who dabbles in IR photography I was very happy to see the channel mixer in PP. Thanks for that!
One plug in that I used in Lightroom was LRMogrify (https://www.photographers-toolbox.com/p ... grify2.php) that allows for text from metadata to be overlayed on the exported image file.
I typically used the 'caption' field to have the location and the year burned into the exported photos.
Do you have any plans to allow for captioning in PP? It doesn't have to be as sophisticated as LRMogrify but being able to do basic captions would be a nice feature to me.