This app was mentioned in 4 comments, with an average of 0.75 upvotes
Take a screenshot, crop it, and save.
I use an app called "meme creator" to join images (link at bottom. Im not affiliated it just took me a while to figure this out). You have to turn each screenshot into a meme in the app (just erase the text overlay and save it). Once each is a meme select "join memes" in the app and select the screenshots in the order you want them joined (you can do vertical or horizontal join). Seems like a lot but the whole process for this screenshot took about 2 minutes. The trick is to crop the screenshots well.
https://play.google.com/store/apps/details?id=com.gentoozero.memecreator
Here, Use this. It's what I use.
https://play.google.com/store/apps/details?id=com.gentoozero.memecreator&gl=US
https://play.google.com/store/apps/details?id=com.gentoozero.memecreator
Kinda limited but i mean it gets the job done
An app for Android called. Meme Creator. I love the damn thing.