No denying the US plays a huge role in the global pharmaceutical industry - but Europe does too - semaglutide (Ozempic/Rybelsus/Wegovy) was developed by Novo Nordisk, headquartered in Denmark.
The popular ADHD drug lisdexamfetamine (Vyvanse/Elvanse) was developed by a US-based research team, but they ended up being acquired by a British pharmaceutical company (Shire), which in turn was acquired by a Japanese company (Takeda), who owned the patents (which expired last year or the year before, depending on country), and remain one of the major manufacturers of it.
If you want a career in drug development, there are huge opportunities in the EU and Switzerland; by no means are you limited to the US. As usual, in the US you will almost certainly get paid more, but some people find the social setting of Europe more to their liking, and view that as a compensating advantage which makes up for lower pay.