The plot is basically:
spoiler
Lab leak virus used by Russian scientist and evil Egyptian man (I guess) to do white genocide (literally, but it's only mentioned in a couple second graphic and one sentence from the Russian) from Soviet communist bunker. Thwarted by James Bond and British government violating international law, also saving Bond's girlfriend and blue-eyed (this is mentioned a bunch) blonde haired aryan daughter.
I don't even think they were doing a lab leak theory thing. As you said DNA triggered nanobots is just something you'd expect a Bond villain to do, and breaking into virology lab and making it a virus is basically just a marketing gimmick. It's about what you'd expect when an industry offloads creative decisions to spreadsheets and focus groups.