All potential observations except oil. Fusion power is great, but does nothing to address the need for hydrocarbons for synthetics, or other manufacturing needs.
But outside of energy, the need for hydrocarbons is up there with most any other resource (steel, food, etc. etc.), and we're not having shooting "iron ore" wars.
This is a fun thought experiment.
With cheap fusion power comes clean water, which is life changing to a large chunk of the world population. World population surges a tick as the survivor rate expands, but social changes haven't adapted to smaller family groups yet. That's a generational problem.
With the M-Drive, asteroid mining becomes viable.
https://abcnews4.com/news/nation-world/rare-asteroid-estimated-to-be-worth-10-quintillion
Early air rafts, etc. remain regulated much like helicopters today. Only part of the reason you can't park a helicopter in your driveway is because of the noise, all of the safety issues etc remain. They will be more popular, but not ubiquitous until complete computer control happens.
Given that our IT technology has expanded arguably faster than what the Traveller time line suggests, it's arguable whether we'd have automated air rafts today or not. It MIGHT be easier (depending on how simple grav "flight" is), so they might exist, but it's not clear.
However, they will be more common. I can easily see limo services and such expanding with trained, licensed pilots, since they land in front of the house with a low hum instead of a rose garden shredding roar. But not necessarily for everyday use by John Q. Public. Simply, as big as the sky is, the air space is even more finite than the traffic grid.
Air travel would be much faster as flights could go suborbital and trans-sonic readily. I'd say any long haul trip would be at least twice as fast, overseas maybe three times as fast, but LA to Vegas will still take an hour.
Much like the Airport Shuttles we have today, where you sign up for one, get in a van with several other people, and drop each one off individually, I can see a similar service farther ranged. LA -> SF, or LA -> Vegas. For these short hop flights, an air shuttle is more efficient and reduces the need to go to the airport. The shuttle just picks everyone one, flies them to the destination, and drop them off. They also are limited due to security constraints. Nobody wants to see a van of 8 people blown up, for example, but "it's only 8 people, not 300". Much like we have lax security screenings on busses today.
Mars will because as or more accessible than Everest, and become an "adventure travel destination". Research is "easy" now, scientists can go wherever they want. Travel times are short, so much more viable for tourism, small settlements will happen, but it won't truly explode me thinks. Mars, in the end, will be a nice place to visit, but no one will want to live there.
In the sparsely populated areas of the planet, remote housing will increase since there's no longer a need for roads to get there. Like cell phone towers, small clearings will pop up as land is sold, and folks move out in to the wilderness with their log cabin, fusion generator, and air raft pad connected via the low orbit satellite internet. But this will be for the wealthy, or at least upper middle class. Fusion may be ubiquitous on a societal level, but it's not "free" by any means. FedEx nor the USPS will NOT deliver to these remote places. They'll have to fly in to "town" for packages and groceries.
Cities will still be energy limited, but this time simply by heat bloom. Unless whatever magic heat dampener that we don't mention being used in space craft is brought down to the terrestrial level. Even "free" energy gives off heat.