Struggling to maintain color consistency on wide-gamut monitor

Hi everyone,

I’m having trouble adapting to using a wide-gamut monitor, specifically with a DCI-P3 color profile that I downloaded from RTINGS for my specific monitor model (DELL U3223QE). I’d appreciate some help understanding what's going on and finding a solution to maintain color consistency across programs and profiles.

Problem 1: I understand that sRGB colors will look less vivid on a wide-gamut monitor, but when pasting screenshots into color-managed programs like Photoshop or Illustrator, the colors appear very desaturated. Converting the screenshot to sRGB and re-importing it into these programs doesn’t help. I’ve also tried assigning the screenshot to P3 and then converting to sRGB again, but the result doesn’t match the original. In my work I'm always using screenshots to quickly grab colors from references. This has always worked in regular monitors and the consistency of colors was always ok.

Problem 2: Additionally, when importing images with an sRGB profile into documents also using sRGB, the imported image colors look less vivid. Specifically in Illustrator, when I use the color picker to sample colors from the image, the sampled colors appear desaturated compared to the original image, making it hard to maintain color consistency across my work.

Here's two examples (left, document in sRGB; right, document in DCI-P3)

My solution so far: I’ve started working with the "Monitor Color" profile within the documents and then converting files to sRGB at export. However, I’m unsure if this is the best practice or if I might be causing other issues without realizing it.

TL;DR:
I’m using a wide-gamut monitor (DCI-P3) and struggling with color consistency in Photoshop/Illustrator. Screenshots and sRGB images appear desaturated, and sampling colors in Illustrator shows less vivid results. My current workaround is using "Monitor Color" in documents and converting to sRGB at export.

Does this make sense, or is there a better solution for consistent colors across web, files, and programs?

Thanks a lot for the help!