The big difference is:
On the Fediverse, some random person now has your email and IP address (if you use neither an disposable email nor a VPN). This person has no special access to any other data, meaning that outside of legal proceedings with courts involved (or your email address being publicly connected to your identity), they do not have the ability to even find out who you are.
On corporate Social Media, the people who got your email and IP have a lot more resources to build a comprehensive model of your behavior and psychology, use intensive profiling regarding your devices, and have money to buy datasets for finetuning their knowledge, then sell off access to your eyeballs to the highest bidder, while all the time making sure to keep you engaged with whatever tricks they can play on you.
None of the real-life consequences of using corporate social media have even the slightest chance of also being an issue on the Fediverse. The servers aren’t even really interesting targets for Cyberattacks, because the best you get is a handful (if we are not talking lemmy.world, mostly somewhere sub-500) email addresses.






lol, i saw that one last night