Hey mate, which Ear model are you look at? And what’s driving you to consider the CMF Buds vs. Nothing Ear? Here’s my thoughts:
If sound quality, build quality, transparent design and things like custom equaliser are your top priorities, the Nothing Ear would be the better choice, they do have better ANC/Transparency too. However, if you prefer a unique and colourful design with no transparency at a lower price point, with a decent feature set the CMF Buds Pro 2 could be more appealing. The general quality of the CMF Buds Pro 2 reminds me of my pair of Ear (1)'s.
For me, I’ve got the Ear (a) & the Buds Pro 2…. I use the CMF Buds Pro 2 more, I do prefer the sound and think they’re exceptional for podcasts, video watching but, I’m not an audiophile by any stretch… my idea of good is bass heavy.