If Dependabot opens a PR to update, say, a dev-dependency, then Gearset intercepts that and does its thing, including back-propagating that PR. But if I'm making branches from main, all I need is that PR to be merged to main, and it will come along the pipeline with other PRs opened against the beginning of my pipeline.

If you read [skip ci] in the PR title, or perhaps if the PR starts with a specific prefix (like ci or build, which would follow conventional commits) then just let that PR go against main and ignore it.

I have workflow to approve and merge those PRs if they're opened by Dependabot, so Gearset is over-complicating things for those.