Hello according to Samsung all mounts that comply with the VESA standard will work "The screen is fully compatible with monitor arms that comply with the VESA standard..."
https://www.samsung.com/ch...
The hole pattern corresponds to 100 x 100mm and a suitable adapter for wall mounting is included with the monitor (I received mine today). So you can choose freely, with or without an arm as you like, but tiltable makes sense. The monitor is relatively heavy, so it's better to be safe than sorry (weight of monitor without stand 14.1 kg). Many greetings and have fun with this great piece of equipment.

What wall mounts are available for 49 inch without an arm, i.e. directly from the wall?

Is the "Next Level Racing Free Standing Single Monitor" compatible with the enclosed adapter? Do you know this?