Yes. It’s a bit up to you. If you were happy with the snap setup, you could update and control everything, why change? The snap stuff is from ubuntu not debian.
NextcloudPi is an image, probably you have to unpack first and then use a tool to put the iso-file on your SD card.
From looking the form-factor is quite similar. Not sure if all the connectors are at the same location. I don’t have it in front of me…
I think I know how to ask a more specific question in the appliances forum
My problem with the unpacking of the Nextcloud-Pi download was simply that I didn’t wait long enough for it to finish reading as it took much longer than I was expecting.
However, I think you are right, I will stick to the Snap set-up