https://wccftech.com/ps4-no-offline-games-cmos/
and in a further extension of this ball gathering moss its no longer rumour but confirmed that the CMOS battery in PS4's, which on average have a lifespan of five years, will render the system unable to play digital AND physical games once it dies due to some fucked up psn trophy synch design. The console will no longer be able to ascertain if you are playing a legitimate PS4 game disc and refuse to boot it at all. Luckily it looks like anyone with a bit of know how and a a screwdriver can open up their console and replace it and unlike a few gens ago doesn't appear to require soldering either and that *should* solve it but thats right now. When Sony cuts the PS4 off the PSN too eventually this will be the default the cmos is just simulating early and the console may just become a brick that refuses to boot games at all without the trophy/patch prompts there anymore.
Hopefully they find a work around but given their current "its not our current hardware so its abandoned" status for everything pre PS4 i don't see the current leadership wanting to try and do this when they can say "but we have a console that still plays those games, its called the playstation 5" instead.