HP is a household name when it comes to printers, but the company employs questionable practices to maximize profits. Much like Apple, HP aims to create a closed ecosystem, forcing you to use only its ink with its printers, especially if you opt into HP+.
Recently, I was at my in-laws’ home and signed up for HP+ for them through the app only to discover that once you accept, the printer firmware is updated permanently. There's no way to undo it, and you're locked into using HP ink cartridges to print anything.