The new immersion processes are NOT "surround" sound. Surround sound was based on channels and many people who have not adopted immersive audio dismiss it because of their misunderstanding about "object based" audio.
Immersive audio is new and still finding its way. When I decided to adopt immersive audio I took the same care in speaker selection that I did with two channel. If I wouldn't use a speaker in my immersive audio setup for two channel I wouldn't use it as a surround speaker. Dolby has specs available for speaker setup. I followed them and chose to use front and rear height channels using bookshelves. Simple, you can aim them at the sweetspot. It made no sense to me to use the speakers that bounce off the ceiling or drill holes in my ceiling to have speakers aimed at the floor. The floor is not a sweet spot. Once setup properly immersive audio is breathtaking. I still listen to two channel at low to moderate levels on some content, mostly in the morning with my coffee. But if you want to replicate a live music experience immersive is much more lifelike than aiming a pair of speakers at your head.
I encourage you to check out the threads I started here on atmos. One is how to setup an atmos system based on dolby specs. The second is on atmos music.