alt Hacker NewsLinkedin is the worst offender of them all. My feeds don't get updated for days when I use the web mobile version and I start seeing new posts only when I switch to desktop mode (switching to mobile shows the same old feed). They also don't even let you reply to comment replies or see reactions. They even scroll you all the way to the top if you dismiss their annoying "linkedin is better on app" pop-up just to punish you for not using their app. I'll never install apps of these companies that are actively hostile towards those that don't want to be constantly spied on by them.
They are so paranoid against scraping or someone building automations on top of their app they don't want you to have, that they are willing to make their actual application borderline unusable for the power users who would actually be willing to pay for their first party upsells and features.
It's infuriating. I have literally tried all of their paid products in various forms (they are expensive but the value is clearly there if you're a business). If only they invested as much in making them actually good as they did in preventing you from using extensions or other tools to implement the features they can't or won't, I'm sure they'd get a lot more business.