Google gives Android users a way to install unverified apps if they worked hard for it(including waiting 24 hours)
(android-developers.googleblog.com)
There are some places one can contact:
https://competition-policy.ec.europa.eu/antitrust-and-cartels/contact_en
Email Digital Markets Act team: EC-DMA@ec.europa.eu
Contact DMA team: https://digital-markets-act.ec.europa.eu/contact-dma-team_en ↗
Contact your Member of the European Parliament directly: https://zeyus.com/contact-mep-representative ↗
Email Antitrust: COMP-GREFFE-ANTITRUST@ec.europa.eu
https://competition-policy.ec.europa.eu/antitrust-and-cartels/contact_en
I tried sending a message to one one, i forget which, and they essentially replied that they see nothing wrong with it, so more people need to complain.
https://keepandroidopen.org/ More infromation from here.