Threads Software Limited says its lawyers have informed Meta that it will seek an injunction from the courts if the Facebook parent keeps using the name Threads...
Meta given 30 days to cease using the name Threads by company that trademarked it 11 years ago::undefined
Your trademark is protected only in the field you're in, but if you're a widely known brand, and can prove it, you usually have some special protection, allowing you to prevent others from using it in all fields.
And when Apple violated the agreement they made with Apple Music not to enter each other's industries (Apple Records couldn't sell tech and Apple Computers couldn't sell music), they successfully argued in court that iTunes wasn't selling music, but digital downloads...
I always thought it was funny while studying for my Cisco certification that their operating system was also called IOS. I had no idea there was actual drama behind it!
Because unless you want every company to be a random Amazon brand or initialism, that's how it kinda has to be, and it works fine until one company gains so much market share the word starts being associated with only them.
Think of like, Target or Shell. Both are huge companies, but their fields are narrow. You might confuse a Target named restaurant or pharmacy to be the Target, but probably not much more. And if it doesn't have anything to do with oil or gas, it's almost certainly not that Shell.
Apple is just so huge I wouldn't be surprised if at this point people think of iPhones while buying lunch. And even they started as "Apple Computers, inc", because they wouldn't have gotten just "Apple" if they had tried.