The main thing to remember is that Sony owns far from home. They don’t need permission to do anything with that movie. Assuming that because they showed that, that there was some agreement made between Fiege and Sony was a mistake.He is DEFINITLEY going to be in the MCU, how are you even questioning this? In the post credits scene he is literally transported into the MCU and sees Tom Holland on tv. Implying that he wasn't in the MCU in his own world. That was probably part of the deal between Feige and Sony, that they can crossover, but this Venom actually doesn't come from the MCU and instead comes from a different cinematic universe. This also lines up with Feige saying Spidey is the only hero with the ability to "swing between cinematic universes". And the reason that he's transported into the MCU will most likely be explained in No Way Home or Multiverse of Madness as it looked like some Doctor Strange multi-verse stuff going on. Venom LTBC also just made an absolute fortune at the weekend box office as well, so Feige is probably very happy right now as he knows people will line up to see Spidey fight Venom.
Your perspective is one way to look at it. Ask yourself why they’re not advertising the hell out of venom showing up. It would skyrocket the box office for venom 2 and people would be even more hyped for no way home. They’re not doing that because he’s not in it and there are not actually any plans.
There’s one movie left on Tom Holland’s contract after this with marvel. It’s not even scheduled yet. That’s your only chance at a crossover approved by both parties and it’s YEARS away.
The other option is that the deal runs out and Holland gets pulled out of the mcu to star in the Sony ******** movies. That’s still not the mcu.
Also, the footage in venom is hilarious. It’s clearly b-roll. They did not film Tom Holland for this. What is he even doing? Standing publicly without his mask looking all shifty eyed and not speaking lol. It’s so obviously forced. It does not seem like fiege is on board with this at all.