The integration is currently handled in a custom form which doesn't have functionality like pagination etc. since it requires you to generate 50 at a time.
Having an action plugin will allow it to work with existing entity views and work with Views Bulk Operations (VBO) → and core's views bulk operation feature.
This'll allow it to scale up without needing as much manual intervention from the user.
Add an action plugin for generating image alt text (with options where possible for if it should overwrite the existing alt text where possible).
Provide issue fork.
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We can close this issue in favor of #3504027 ✨ Add a Generate Alt text VBO plugin to generate alt text for selected medias Active , where it is already being addressed.