IBM is more than 100 years old, has defined a huge part of how we think about computers, made plenty of its employees and workers of the wider field rich, has sold many businesses it considered distracting, and is still worth $200B+. Anyone saying "IBM" in the sense of "stagnant failure" is delusional.
Not to mention they are still at the forefront of materials science and industrial design, and just so happen to manufacture bespoke CPU & server platforms that run circles around all the hyperscalers...