• Google Image Search removing the ability to go directly to the raw image after Getty complained that web users are bypassing its website and therefore not generating traffic
• Facebook removing chronological feed
• Facebook showing you pages that you never followed on your home feed without the ability to turn this off
• Microsoft trying to introduce ads to Explorer and the start menu
• Microsoft making it difficult to create a local Windows account by making the process unintuitive, leading the user to believe that a Microsoft account is needed to use Windows
• Apple dropping support for iOS web apps because it doesn’t want to support browsers other than Safari
• Reddit and Twitter’s ban of third-party API use that killed nearly all third-party clients
• EA producing games that require users to be always online, despite the game being single-player, presumably as a DRM measure
• Ad companies making it easy for you to give consent to data sharing and selling but really difficult for you to opt-out

Edit: More examples