They weren't even 44B when elon took the keys - he specifically tried to back out of the deal because 44B was insane peak '21 asset bubble price. In truth they were probably like 10-15B at that moment. And now that bunch of advertisers left due to we know who it's probably about 10B

More like $13b.

https://arstechnica.com/tech-policy/2024/01/since-elon-musks...

Twitter didn't have direct competitors other than Mastodon when it was taken at 44B. Now there's Threads, Bluesky and bigger Mastodon.

Honestly, none of those look like meaningful competitors at the moment.

None of these matter

twitter was valued around 30 billion when musk tried getting out of buying it (then the market cap went up when it became clear that he would be forced to pay full price)