Coming from previous console hacks…
It generally does require a halfway decent techie background to hack a console (or anything, like jailbreaking a phone). At the very least, being able to follow guides exactly to the letter or risk bricking a device.
Generally speaking, hacking a console will not let you play online.
You generally don’t want to put a hacked console on the internet at all to keep it from being potentially flagged from the parent service like PSN
Now, this could all be different depending on the actual hack, but it’s what’s been true for previous ones.
Chozo@fedia.io 6 days ago
If this is something you want to try for yourself, either buy a second PS5 and use a burner account on it, or be prepared for the possibility of losing your entire PSN account. This goes for pretty much any internet-enabled console modding.
Nintendo deactivated a 10+ year old account of mine when I tried modding a Wii a while back. It wasn't a huge deal at the time, because I still had physical copies of most of my games at that point. But these days, my library is almost entirely digital, so I keep separate fuck-around accounts so that I don't find-out with an account I've spent money on.