Under https://plugins.jenkins.io/pipeline-aggregator-view/#releases there are 3 versions listed that have been released and publishes:

1.14

1.13

1.12

all on the same date. But the last commit was done in 2021

See https://github.com/jenkinsci/pipeline-aggregator-view-plugin/commits/master

Also on GitHub the last tag is 1.11 and there are not any GitHub releases listed.

Where  does these version come from and are they trustworthy?

Thx for clarifying.