We have added optional collection of CRI-O and kubelet profiling data in the must-gather image upstream: it will be usable in the next OCP must-gather release.
Till then, we can use a custom image, as detailed in our doc:
https://docs.google.com/document/d/1Jpe7H-TiPquSk8jt580GHBjxiakP9eGZ01nk0qkPvyA/edit#heading=h.66y4kqbj468a

Update the document when the official must-gather image will be released.