More or less. There aren't as many bots, and everyone is generally aware of traditional Internet etiquette (i.e. don't be an asshole). Lemmy also feels as homogenous as early Reddit: college-educated white people in western countries.
I started joining forums back in the late nineties and I've learned every place on the Internet is in flux. Things always change. Back in the day, stuff would happen like we would lose hosting because someone got sick of running a niche phpBB forum or the moderation team would change. When social media kicked off, changes were driven by money. Facebook was a big gaming platform in my college years (Farmville), which feels completely foreign to today's Facebook.
The smaller the community, the more stable it is. Some of those 20-year forums still exist, albeit in a much more diminished state. If a site/platform gets popular, that's when things can change quickly.
Lemmy has already changed since I joined and I'm sure it will become something different in the future.
I like Flauncher or ProjectIvy. I'm using the latter on the living room TV and it works great.