It depends on your layout but in general speakers that just angle the tweeter and not the rest of the frequency range have very limited applications.
These Kef speakers I have used and wouldn't use them in the typical layout of placing them 45 degrees in front or back of the listeners like in the Dolby diagram. If you only care about 1 seat it might work OK. Atmos in homes with typical low ceilings 2.5-3 meter (7-10ft) makes it difficult to get all the angles correct to cover the seating area well. The angles just get to be too great for other seats especially if you have two rows. Ideally, you would want something that angles 45 degrees but I would say at least 30 degrees. Even at 45 degrees it is often better to not place them 45 degrees in front of the front seats or behind the backs seat. You have to calculate the angles for your seating area and ceiling height and try to get decent coverage for the seating area. Try to get speakers that work for your situation and hopefully closely match your other speakers.
These Kef speakers I have used and wouldn't use them in the typical layout of placing them 45 degrees in front or back of the listeners like in the Dolby diagram. If you only care about 1 seat it might work OK. Atmos in homes with typical low ceilings 2.5-3 meter (7-10ft) makes it difficult to get all the angles correct to cover the seating area well. The angles just get to be too great for other seats especially if you have two rows. Ideally, you would want something that angles 45 degrees but I would say at least 30 degrees. Even at 45 degrees it is often better to not place them 45 degrees in front of the front seats or behind the backs seat. You have to calculate the angles for your seating area and ceiling height and try to get decent coverage for the seating area. Try to get speakers that work for your situation and hopefully closely match your other speakers.