Maybe the COVID lab leak theory is deemed misinformation and removed from your search result. But it's not 100% proven either way, who is to say that this is "misinformation"?
It's one thing to suggest an opinion that's just more popular, it's another to remove the competing opinions
You know that reasoning can be applied to literally any removal right? There's _tons_ of stuff that it would be pretty reasonable to remove (and I'm sure you'd agree that things like CP shouldn't be on there etc.). There's also plenty of stuff that they would likely _have_ to remove if the state told them to (I don't have direct evidence of this happening, so take it as a hypothetical), while this isn't necessarily a _good_ thing, it's also not a slippery slope.
I'd also like to highlight the thing where you implied that Russian state propaganda is just an opinion or a theory (and therefore just as valid as any other innocuous opinion or theory), which is at best intellectually dishonest.
"literally any removal" is not inherently political
Think about it as a potential conflict of interest when a politician or a company decides that a topic should be censored.
Russian propaganda is propaganda and lies, but if you remove one type of lies, then why not COVID misinformation? No government is FORCING them to any of this, so it's a slippery slope