I built it using the Krita 5.3 version that is not yet released so if it gets merged soon it will be accessible in the next Krita version. To access it you don’t have to build anything right now, I have already built a few versions.
I will post screenshots with the steps to access it.
Step 1: Go on the link and click on Pipelines
Step 2: Click on the number as shown below
Step 3: Choose one of the green marked builds for either Android, Linux, Windows or MacOS
Step 4: Then click on the browse button of the “Job Artifacts” section
Step 5 (Final Step): Follow the instructions for your selected operating system of the builds from this link: How to test a Merge Request or a new, unfinished feature [Instruction] (Credits to: @Drawpile for linking it, and @tiar for making it)