> It’s crazy to think that some software engineers might actually intentionally degrade user experience on non-Google browsers or for people using adblockers.
Pretty sure that was happening back in a days when Opera was using own engine (Presto). They shipped browser with scripts to fix some popular sites. Actually Firefox also has some fixes for particular sites about:compat
Even market-dominant companies do this. Windows ships a bunch of backward compatibility patches. Graphics card drivers (especially Nvidia) wholesale replace shaders in popular games.
Pretty sure that was happening back in a days when Opera was using own engine (Presto). They shipped browser with scripts to fix some popular sites. Actually Firefox also has some fixes for particular sites about:compat