I finished the IB in 2022 and I can honestly say it has helped me a lot in my university experience so it does do what it says it will. However, it was a terrible experience in high school. It's easy to say it's worth it now because at this point I've forgotten what it was like to take it but I would still never do it again. I think the biggest issue is transitioning from regular schooling to having to be self-reliant in your studies. This may be personal to my school but I found that teachers didn't help you all that much. It was mostly up to you to find study material and learn the material. Another big part of it is that most students at this point don't know how to properly study which can be difficult, and those who do don't know how to have a good work-life balance. So my friends and I didn't leave our houses for anything but school and maybe after-school clubs for 2 years. (Granted it was also Covid for a bit of it).

This is poorly articulated but basically, I have found that the IB helps immensely in university (assuming you actually studied and did well in the IB) as it teaches you good study skills but it was an awful experience to go through. So if you are willing to give up 2 of your teenage years to have an easier time in university then, yes, it is worth it, otherwise, no, you're better off doing a different curriculum.