You might be interested in the upcoming Digital Markets Act by the EU that is built to address this among other things.
https://digital-markets-act.ec.europa.eu/index_en
Notably you can check out their list of gatekeeper services
https://digital-markets-act.ec.europa.eu/index_en
Notably you can check out their list of gatekeeper services
How is Android any different?
https://digital-markets-act.ec.europa.eu/gatekeepers_en
In there you will find pdfs for each entity with not only the qualifiers/assessments, but also the counter arguments they presented.
For example, here is one from Alphabet that also brings up your point in the counter argument
https://ec.europa.eu/competition/digital_markets_act/cases/2...