Are there any apps or sites that collate all the patch notes for games?
As the title says. PS5 is a pain in the arse for not putting patch notes on the console and I hate having to scour the internet to try and find what's new in an update. Whether it be "join our Discord" or Facebook pages or hoping someone posts it in a subreddit.
If patch notes are announced in an official blog, it's likely that it has an RSS or Atom feed. You can subscribe to the blog from an RSS reader and it'll appear in the feed.
And if you haven't heard of RSS readers before, welcome to the world of being able to subscribe to almost any website you want! The news and webcomics come to you, not the other way around.
Update: an example.
I open my reader (Inoreader), select "Add feed", and enter https://www.teamfortress.com/. It detects the TF2 official blog and I select "Follow" to add it to my feeds. Now, when TF2 updates and patch notes are posted, I can refresh my reader to see the latest patch notes.
I've been out of the RSS metagame for a long while, so I don't have any particular recommendation. I've just been using Inoreader on mobile as well for the past several years since it works for my purposes. There very well could be better choices out there but there's no urgency for me to switch.