Starfleet and Earth in general seem to have a pretty big problem with a shortage of trained professionals when the Enterprise crew is sent to the site of an embassy bombing to investigate what happened. Are Mayweather and Reed now also crime scene investigators, special agents and profilers? Are there no more police organizations, planetary security and secret services? And the investigation of such an attack site is then carried out without forensics, photos, video material, etc.? And also without protective suits and gloves so as not to contaminate the evidence?
And why does Vulcan always look like a backwater planet where not a single tree grows and you don't see any signs of industry or progress? The Vulcans are a highly advanced civilization that has developed warp-capable spaceships and uses them to roam the galaxy. But there doesn't even seem to be a pub or a supermarket anywhere on their planet. Let alone huge futuristic metropolises in which millions of people live in very small spaces (like Tokyo, for example). Where are the skyscrapers? Where are the industries? Where's the neon signs and the nightlife? Even the houses look like these people live in a pre-industrial age. No monitors, no gadgets, no cars or anything like that, just nothing. You don't see any streets, sidewalks, street lights... not even normal day-to-day life: people on the way to work, families with children, old people on park benches, teenagers hanging out...
Kind of typical for Star Trek. You never actually have the feeling of having arrived in the future. As a rule, people live either in caves or in small agricultural villages. Only in Lower Decks does one get the feeling that the various alien species are actually highly developed. For example, Ferenginar looks progressive and there are TV and entertainment series and normal nightlife.