The main way Occam's razor is misused is people always forget one thing "when two proposals are EQUALLY likely go with the simplest one" Equally is the keyword. The "the simplest solution is usually the correct one" isn't even what it actually was 1) determine how many assumptions and conditions are necessary for each one to be correct 2) if a situation requires extra assumptions or conditions demand evidence to commensurate with the strength of each claim 3) if two claims are of equal strength the one with the fewest assumptions is usually correct. Leaving out 1 and 2 is basically ignoring the most important parts of the logical process. People use it to handwave away complicated answers without even having to think. I'll use an example from history. The simple explanation is that JFK was shot by Lee Harvey Oswald, a wanna be commie kicked out of the soviet union that was angry at the US. The complicated explanation is that he was killed as part of a larger conspiracy. If you leave it there occams razor would conclude that JFK was shot by long gunman LHO. But, if you analyze the entire story and look at bullet trajectories. The difficulty of one guy making that shot. The actions of individuals like Lyndon B Johnson prior to the assassination. The statment of LBJs mistress the night before the assassination. The mob ties of JFKs and RFKs father. The extreme corruption of LBJ prior to becoming VP. The humiliation he thought he was receiving as VP. RFK planning to go after the mob, the opposite of what the mob thought they were getting when the  kennedys got in office, RFK saying "I knew theyd get one of us, i figured it'd be me". The CIA's document 1035-960 detailing how to use media assets to undermine anyone critical of the official narrative and portray them as crazy. The death of LHO. The death of RFK. Honestly I could spend all day. Point is you can look at the events and start pieceing things together that tip the balance of probability away from the simple explanation. You might not be able to definitively say what happened but when analyzing the things you do find out if one explanation becomes more likely than the other then occams razor no longer applies. It is more likely JFK was killed as part of a conspiracy. The way people who invoke occams razor usually use it is just a way to be lazy and not even try to think about alternative explanations. You shouldn't be able to use occams razor easily because it requires first analyzing both sides and assessing things from there. If occams razor applied the way it's normally used then nothing would ever be more complicated than gut instinct.