logixoul
The celicious anti glare/matte protectors are more thicker and have a stronger matte texture/finish. The ones I use, found on amazon, are 0.13mm thick, with a hardness of 3h.
They also do a privacy matte glare version, with a thickness of 0.43mm. I've tried these, but I personally found them too dark, but they might work for you.
I purchased a handful of realme 9 pro ones, and I just cut them to length when using on a phone that has different display measurements.
I'd imagine they'd be more studier for you if you're gluing tracing paper, or you could try to use them on their own
Be aware, they come with 2 peel off panels, front and back. This is mentioned in the instructions.