Apply to large companies? I work for a large company and, when hiring, I never look up people on social media. Mostly because I don’t use social media, so I wouldn’t know the first thing about looking anyone else up.
Large companies are the worst for this. They hire firms to go through a person's social media history to find out what they did and if they are a good fit. One mention of recreational drug usage in a positive (or neutral!) light can sink you. Being seen to go on racist rants certainly will, especially when you consider that most large firms' HR departments also have extensive DEI programs.