This is great, thank you! By far the best lemmy experience.

I wonder if the area for swiping from left to right to go back could be increased? I find that I have to really find the sweet spot to the edge of my screen in order to make it work, and with left gestures disabled, it would be great if it worked in their place. Is that possible?

No, it just takes a multi Reddit link that you paste, and for each subreddit, it will search for alternatives across the Fediverse.

You can select them one-by-one and subscribe to any you fancy.