After fetching and merging upstream with the quick button in UI, I received a lot of PRs by dependabot

I had a fork of GitHub - jhipster/generator-jhipster: JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures. that was like 9000 commits behind the upstream (comparing both main branches).
Today I fetched the upstream into my fork and had like 20 emails in my inbox from dependabot that had automatically created PRs to update the dependencies within my fork.

That seems to be a bit overkill.

Because of the GH Actions within that repo a lot of runs were also triggered which is a biiiiiiiig waste of resources… This is just a fork … No need to run the GH Actions on that fork as long as it’s not actively developed on that fork

yup you are correct they are Actions, if you look at the Actions tab of the original repo,

you will be seeing those,

but for a bigger project like this, they really need to automate the workflow, but you can suggest that by raising an issue at that repo,

Maybe Github can also make a change so that after fetching the upstream, the actions are not triggered automatically