I've only had to learn one main thing here on lemmy the last few days,and that was how to search/subscribe differently, with the format [email protected] What have you found difficult in lemmy? Maybe I'll come across my own issues in the coming days.
I've just downloaded the reddit app with a fresh account. They have a dark mode (rejoice!). On the Home tab, I can't resize posts like I could on RIF reddit is fun, my third-party app of choice. If a post includes an image, I actually can't see the entire image all at once without scrolling, but that could be specific to my phone (samsung fold). Resizing in RIF would fix this. Text posts will only show up to 3 lines of text, not the full post, and I don't think I can customise that. You also can't hide a post.
The posts include in-line ads that don't admit they're ads, until you find the small text 'Promoted'. After scrolling for a minute, I notice literally every third to fifth post is sponsored content. Im not exaggerating! Every 3-5 posts is an ad! They have my region accurate - I see posts and sponsored content from my city, state and country. I did not choose to give reddit this info and have not subscribed to any subreddits yet. Actually, almost all the post I see are based on my region, "popular in your country" etc. and only a couple I see from big subs like AskReddit.
Along the bottom of the page you see more tabs. On the Discovery tab, you see a generic instagram feed, pictures and video organised by hashtags i guess? It's not clear. Cars, Sports, Nature. There is also a chat tab and an inbox tab. I don't think I'd use discover or chat at all, but the bottom of your screen will always be taken up by these tabs, you cannot hide this menu, nor the full-width search bar up top.
Lastly the reddit app is not compliant with accessibility regulations, so there's no workaround if you have vision impairments or maybe even just smash your phone screen and need another app to navigate around.