Honesty, No. Without Disney Buying it, the MCU would never have the Fox Characters or more importantly to Marvel's Survival Spider-Man.

I don’t think it would

Marvel would have been continuing making Spider-Man movies/reboots, more X-Men movies would have been made, maybe another Fantastic Four movie

Daredevil could have gotten something not like the Netflix

Blade, Ghost Rider and Punisher could have done something as well

No, it wouldn't. Marvel Studios would've had to rely on other studios (Paramount, Sony, 20th Century Fox, Universal, Warner Bros.) to help make it successful.

Heck no. Two or more major flops in a row would have ruined them instantly, and they would have never gotten large IPs that make them successful now.

Well for the MCU to be successful it would need one studio to control all or most characters. The 90s showed what happens when different studios had rights to different characters. So if Disney didn’t do it, another studio potentially could. The MCU still might look very different under a different studio guidance. Like if Universal had all the characters, they might have their own version of the MCU and they might be on Peacock and rides at all of their theme parks.

Good Lord, I probably won't be a massive fan if Universal had all the characters as let's be honest, Banner would probably be a main character in their storyline lol.

I don't even wanted to think what Sony would do to the MCU, We might have reruns of the Tony/Steve/Peter Parker Show. Carol and the other major MCU Females would be a even more minor character

Here's a idea for a future MCU movie for the MCU X-Men movie

Keanu Reeves as Mister Sinister

The Director if he's able to do it Peter Jackson