I can't speak specifically to IBM as a whole, but in my experience, there are parts of IBM that are old and stodgy (professional services around finance and government that I interacted with when I worked in those industries). There are other parts (around security and research that I worked with in other roles) that are pretty cool and innovative that are much more approachable and fun to work with.

IBM (and Microsoft, and Google, and others) are huge and it makes sense that there are pockets of awesome and awful distributed throughout them.

Let me start with general: Companies aren't people.

We tend to ascribe... personalities to large companies; explain them in single sentences. IBM is old and stodgy, Oracle has awful licensing practices, Amazon has (great cloud | shoddy warehouse employment practices | too much counterfeit goods) depending on perspective, etc. Sometimes we mix up Musk and Tesla. Overall, we tend to put a simple descriptive sentence over companies, just like we do over politics and history etc. We must, it's how we make sense of the world :).

But in a company of tens and hundreds of thousands of employees, cultures and perspectives and motivations can differ significantly. It'll be a complex landscape. Not all of IBM is stodgy anymore than all of Google is cool. And I've been amused there's a guy in Amazon who maintains PeopleSoft HR just like there's guy in Government of Canada who maintains PeopleSoft HR :-). The IBM guys designing hardware who test their work by putting radioactive material under the computer and seeing how CPUs behave? not so old and stodgy, in my mind :D . There's also some genuine good hard work on occasionally boring stuff like RDBMS engines & optimizers, compilers and OSs for obscure boxes, and I am pretty grateful to folks who write p-series firmware because watching a live production sync and migration is exciting stuff, as well as OS/390 / z/OS/VM guys who are probably chuckling at the "Virtualization" and "Cloudiness" things we all think are shiny and new and cool:). Don't know enough to speak about the quantum thing, I suspect there's a core of innovation wrapped in unfortunate marketing bollocks, as there was for "Watson" (which I find easier to think of "branding for semi-related suite of created and acquired products, some good some average some ugly" rather than "AI that won Jeopardy").

For myself, FWIW, people around me have much more immediate impact on my working satisfaction, than overall corporate average/stereotype. And I've worked with excited enthusiastic peers, been surrounded by experienced leaders who provided extensive mentorship, and done some personally exciting stuff (inasmuch as "pushing 1's and 0's around and making computers go bleep bloop" is exciting:). I've had times when I worked on personally technologically exciting things; and I've been in places and worked for clients where it's all molasses and quagmire and politics and procedures; I've tried to force myself to learn something about all, and I feel I've gained a certain perspective... but we each have our own perspective and priorities and where I've found satisfactions others would only find frustrations. But what it comes down to - I've been surrounded by sufficient percentage of people competent and motivated (even if in ways and fields that HN stereotypically would not always necessarily respect), to enjoy myself on average :).