I myself haven’t noticed any changes

So you haven't noticed the 80% reduction in staff leading to incredible amounts of Twitter Downtime, the rise in hate-speech due to the firing of the moderators, the loss of mainstream advertisements, and the replacement with ridiculous low-quality advertising because the mainstream advertisers have grown concerned about the hate-speech?

And you haven't noticed the increase in downtime as the website continuously crashes? The loss of the blocking feature? The inability to block Elon Musk specifically? (and how he keeps appearing on everyone's feed even when you try to get rid of it?). The loss of API access?

Comment quality and overall quality of discussion has declined significantly on Twitter as well, as Twitter has fallen from top10 on the App/Play store to #55 or later, because it turns out that Americans are too stupid to search for "X" rather than "Twitter". There has been a precipitous decline in the already crappy quality discussion.

Finally, Threads and Mastodon have sucked out many high-quality posters and sub-communities.

For a product the logo and brand recognition are not minor. Twitter was so well known and ubiquitous that the word "tweet" was included in dictionaries around the world. He threw that away and replaced it with a generic X, and no one can figure out how to call posts on that platform now.

But other than that, he has a very particular stance on moderation and free speech. He thinks hateful comments are just fine, as long as they aren't strictly against the law. But he also doesn't apply the same standards to himself, removing stuff he doesn't like even though it would be ok according to his own rules. He also gutted the Twitter/X staff, particularly the tech departements, leading to numerous outages and technical problems. All this has made it an even worse platform for civil public discourse, and it wasn't all that great before he took over imo.

If you don't notice the changes, you were part of the people he bumped up at all costs that turned it into a terrible service

The "blue check" system which was previously used to denote verified users were who they claimed to be suddenly became a complete cash grab for $8 a month, even more for companies to have verified checks or sets of them? Then when not everyone was buying in those users were pushed to the top of replies to users posts. This of course caused tons of people to just get blocked outright because of their checks.

Additionally i believe he has threatened to remove some companies handles because they stopped using them most notably NPR.

Now he has floated the idea of removing the blocking feature because reasons? Who knows what he thinks. So the functionality has not changed a ton, for now, the quality of what you get has gone down.

Oh also he made a specific exception and unbanned some user who posted literal child porn

there's only been about 7,000 articles every week about it

He had to inject his own persona into the platform by making inflammatory, discriminatory tweets and being a general troll on his platform, and then making unpopular decisions like forcing people to pay for a blue checkmark, increasing API costs, not banning Nazi posters, and of course, the nonsensical rebranding. It drove away people and advertisers who didn't want to be on the same platform as literal Nazis and bigoted TERF people, and companies who couldn't afford the ridiculous API pricing.

Honestly if he had simply not used his own platform as his own bullhorn, he could have enacted some of the more unpopular changes to become profitable.

Wtf?

I'm sorry but if you didn't get mad at every reply on any decently large post being filled with NPC- ass boomer tier memes and replies and attempts at self promo, you might be a boomer NPC.