Whether an Eizo makes sense for you really depends on your requirements. Photography is a big tent. If you are primarily showing your images on the web, then it's questionable whether a wide-gamut monitor will serve you well as your presentation space is basically sRGB. So, any well-made sRGB monitor (especially the relatively lower-priced ones from Eizo, but also better Dells and HP (they mostly have the same panel suppliers) and others would meet those requirements.
If print is important to you, then a wide-gamut high quality screen like the CS Eizo would be great. About 18 months ago I purchased a similar NEC and it's superb for fine editing and printing. I sold my 27-inch 2015 P3 iMac shortly thereafter. 4/5K screens like the iMac are great for consuming information, and for images everything looks sharp--but for editing I just cannot get an acceptable bead on sharpening, NR, and lens characteristics using a high PPI screen. iMacs are further handicapped by a basic inability to properly calibrate them as the only control you have is illumination, so getting accurate color is almost a matter of luck. Fortunately, the new MacBook Pros with the Liquid Retina XDR display fixes this problem.
This is further compounded by MacOS color management deficiencies--you are limited to very basic matrix profiles, unlike Windows that supports more complex XYZ-LUT profiles (that's not me talkin', that's the excellent DisplayCal dialog box when you initially calibrate and profile a Mac-based monitor). Fortunately a self-calibrating Eizo or NEC doesn't depend on ColorSync. If you use an Eizo as a primary monitor for image editing and print prep, I'm sure the iMac will be sufficient for secondary,non-color critical tasks such as palette stashing and basic asset management.
Alternatively, you can get a nice Mac Studio (I just received mine) and enjoy the Eizo. I've had second screens for about 15 years and find the efficiency factor to be super high. Based on a post here, I took a flyer on a relatively cheap Lenovo P-27-u20 Adobe RGB (1998) 4K monitor as a second screen. For the money, it's quite acceptable. The colors are surprisingly close to the NEC; like most non-Eizo/NEC screens the big deficiency is that the illumination is very uneven, probably due to a second-rate panel, but for a secondary screen I can live with it. I'm running the 4K at 1920x1080 and it's fine for the job.
Hope this helps.