In an amended SEC filing ahead of its IPO, Reddit warned potential investors that "...on March 18, 2024, Nokia Technologies sent us a letter indicating they believed that Reddit infringes certain of their patents. We will evaluate their claims." Nokia, of course, leaned into, ahem, patent licensing and networking equipment as its business many years ago, and reminded people of it with last year’s logo redesign. Companies paying Nokia licensing fees include HTC, Apple, and more recently, Oppo.
They’ve been bought and sold to the point that all that’s left is their patent portfolio. Their current business strategy appears to be “patent troll”. They’ve been holding industry telecommunications methods hostage instead of negotiating fair use fees.
Google “nokia lawsuit fair use”.