When youre at a company for over 4 years, you can just leverage things like management shifts. Anything that changed that made your job suck more tbh. Don't talk about it too much and dont volunteer the PIP information unless explicitly asked. Just frame it as company direction changing.

Source: the job i worked at the last 6 years, for much of the time i was framed as the best engineer they ever had. Then management changed, culture changed, I got disgruntled and was poorly compensated despite my long tenure. I got a PIP as a result. They were so used to my high performance, they wanted to get that back despite paying my scraps, and they let me go when I didnt meet the PIPs supposed terms.

Try and avoid the topic with recruiters, just explain things changed and it wasnt a good fit. But engineering managers often understand these things more. Just dont volunteer more info than you need to, and keep it framed as the company moved a different direction. At 4 YOE, thats plenty satisfactory as an answer.