You realise Twitter is more popular than it has ever been? What is it you think you're seeing now?
Define how you are using the word "popular" and define how the equates to prior to musks takeover and how it's being measured?
We know Twitter is about as popular as a Babe Ruth in a swimming pool with the advertisers since Musk took over and gutted it's safety and ad sales teams (and at the same time broke the advert controls so many companies were seeing their advertising budget on twitter spent on old stuff and no way to get it fixed*).
We know that Twitter is losing vast numbers of the "high value" content that used to be the pull for the average person.
We know that Twitter has lost large numbers of the "popular" users that used to draw in people and many more at actively looking to jump ship
We know that Twitter has made it much harder for non registered users to see anything, or for anyone who isn't logged in on their device.
We know that Twitter has driven off many large organisations for whom Twitter was an important tool (and thus also taking away a lot of the reasons many people signed up/used twitter). Everything from weather services to local news.
We also know that Musk has fiddled with the way Twitter is counting stuff and skewed it at the request of people he's trying to be popular with because when they don't get enough "views" it's obviously "the algorythm" not that they're about as popular as norovirus at a buffet for most people.
We know that Musk has removed most/all of the tools that anyone externally can use to monitor Twitter's performance.
Musk has demonstrated time and time again that he has no clue about what Twitter was, no idea of what people used Twitter for, and zero clue as to how and why it made what money it did and what the userbase will accept as changes to that.
Not to mention his great idea of trying to limit how you block the trolls and idiots, because those trolls and idiots are the ones that actually see a reason for paying $8 a month either because it's worth it for a scam, or because they want a bigger audience for their trolling (and then get upset when the general public won't interact with them, and would rather block them than ever see their junk again).
*One of the fastest ways to get advertisers to stop spending money on your platform, be it TV, radio, Print or the internet, is to waste their money by running the wrong advert and not correcting it/having anyone who can sort it out, especially when there are plenty more platforms on the web that might have similar reach or at least advertising controls that work and show what you've selected.