Waiting for more facts to come out but if this is what I think it is and true going forward this is such a scumbag move.
I understand checking in every 30 days via the internet for PS Plus titles in your library. Because if you can't connect to the internet at least once that often than you're missing most of what even Essential offers.
But for games going forward this is ludicrous. They're on your console, you bought them and it's not like you can legally distribute them anyway. They're just adding more restrictions.

I think the view is this is step 1 in an all-digital future with DRM, and to be fair.  It is coming.  

If you bought the digital game on your console and STILL have it installed on that console, even after it's delisted it will still play. (Not including multiplayer obviously). Namco Bandai delisted Digimon Story: Cyber Sleuth from PSN in 2019 after Hacker's Memory came out. I still have it installed on PS5/PSV and play it to this day. 

Did it change?

I honestly don't understand the comparison there.

If the move is confirmed intentional they need to be bashed until they change it back, my used games did not stopped working at all, tho.

Well that's good news.

Digital games that are delisted can generally still be downloaded. You don’t need to hoard it on your SSD like PT.

Exactly, there's a lot of misinformation out there about this whole process and people are just (to quote Jacob Fatu) all gas and no breaks. And for those who are referencing Xbox in comparison, if you think MS is not going to do this either then you have blinders on. They already do 30 day check ins for Game Pass games and they rarely do physical games themselves anymore. So with a player base who is mostly all online and digital they will likely be apart of this as well. 

2K also announced today that they will have a 14 day online check in with their titles on PC. So this is happening whether people like it or not. It's 2026 and the majority of the world is online anyways. 

Sony has become increasingly bad since the PS3 days. They've been very consistent about it, as far as I've seen, and this is just a continuation of all that. They used to have a lot of goodwill from me, but all of that is now long gone and only going more into the negative. What a trash company from a customer perspective. I really wish we get some proper competition at some point.

No word from Sony on it yet?
Seems like they are testing to fix an exploit, but their silence over this is still so bad.

Just tell people what is happening.

I saw a livestream over the weekend of a guy taking apart his PS5, taking off the CMOS battery and it did indeed stop him from playing his newly purchased digital games.

But today, I watched this video and it seems like the situation is a little more complicated.

It seems like the PS servers are giving out temporary licences for 14 days (which is why you need to keep your console online/with a CMOS battery) but after the 14 days pass, they grant you a permanent licence.

It's all very bizarre and I don't get why Sony made this change or why haven't they said anything publicly.