If you have an iPhone, you can put the greyscale as only a percentage greyscale if desired. I got an iPhone to get rid of the constant bothering from the apple devotees and quickly found myself spending an unhealthy amount of time on it. I started with a small percent greyscale so I didn't notice and would forget that the colors were dulled. Before I even got to 50% greyscale, my habit had died and I only use it when I need to (literally only for communicating with the folks who can't tolerate green bubbles)

My daily driver is GrapheneOS. I don't know if android has a similar feature, but I assume not because my GrapheneOS phone only supports fully greyscale, and the difference is so stark that I can't keep it on. The most addictive apps I have on it are my Hacker News client and NewPipe (the nonaddictive YouTube), so I am not too concerned though