If you're able to sideload Fdroid, I think clicking to update ranks among the least difficult things you can do.

Difficulty isn't the issue - for every app that has an update you have to click it, then approve the install. On my phone there's a significant wait inbetween each step. It's a hassle.

I wouldn't turn on automatic updates anyway but I'd love to be able to select multiple items and give a single confirmation to update.

I have found that f-droid click updates are very finicky and unreliable. They eventually work, but failed updates and repeat and phantom update notifications are the norm.

It's fine for me but I don't think the average consumer would ever tolerate it.