Did companies ever actually do anything after net neutrality went away? I still think it’s a great thing to have but just genuinely curious if anything really happened cause I didn’t notice much.

Well I doubt if companies would tell you "we are giving you a worse Internet experience so we can make more money", voluntarily.

https://www.washingtonpost.com/technology/2023/08/15/twitter-x-links-delayed/

Idk if this is actually a net neutrality issue because they're not an ISP but twitter absolutely added delays to links to websites that Musk doesn't like.

It's plausible that some of the websites you like run faster because ISPs aren't throttling them, while throttling the competition.

My understanding is that they mostly haven't, with a couple exceptions like a few ISPs offering to priorities to pings for gaming (as FeelThePower mentioned), throttle certain protocols (e.g. Torrenting), or refuse to carry traffic for certain sites (e.g. Kiwi Farms). All of this would be prevented under net neutrality.

As far as I'm aware though, an extremely overwhelmingly portion of traffic (like you'd have to do a lot of digging to find an example otherwise) already adheres to net neutrality since it's pretty pointless for a company to spend resources and goodwill to mess with traffic.

I don't think too much will change. It is nice in the sense it will prevent an ISP from doing things against specific sites, although like mentioned above most of the protections are theoretical ATM.