Usually there either arent any in which case bugs get missed or there are 5 very cheap ones running mindless scripts who are standing in for the devs' inability or unwillingness to write decent automated tests but dont catch the really deep level thorny stuff.
Hard disagree. QAs' main tasks are acceptance testing and V&V. This means their work is to act as independent parties whose role is to verify that the results are indeed being delivered. Their importance is up there next to Product Owners.
The problem is that some QA roles are relegated to running the same old test scripts and do some bullshit manual exploratory tests that catch and assert nothing. It's the ultimate bullshit job as it's performative. This is clear in the way that LLM agents are seen as threatening the very existence of the role.