I think that would work. Ultimately, I need to be able to look at your layout and see that your background paper looks like something that could have been done with actual ink pads and acrylic/rubber stamps on paper.
Credits in the gallery. Wow! I found so many cool stamp products to add to my wish list just looking for the links of the ones I used here. Thank you for a different kind of challenge! https://the-lilypad.com/forum/galleries/moc9-day19-stampbgrnd-evantwhitetail120420-web.458951/
Again random stamping .. I would hate to think what a mess I would make with an actual stamp and some ink.
As a cardmaker, I am delighted at getting to create a 'digital' card. My finished layout even looks like one of my cards. I created my background using a cup doodle. I drew the hearts myself and added a subtle texture to my cups. This only shows when the coloured hearts are there - as I intended because I wanted it to look like heat embossing. I layered up my papers, just as I would if I were making a card and there is normally a cute critter somewhere on my cards, so I added the sweet bear and made the whole thing a Valentine's Day 'card'.
There are some really fun examples here already. I used the first few doodles I came to that I thought would create some sort of "generic" paper as I had no idea what I was going to scrap.