Haha these are the time consumers Ali......
I go fully into the corner and then scribe the adjacent tile into it. So I use the wet cutter on the bevel at the angle of the bevel (if you get me) and then scribe and snap along the face between the two cuts.
And don't you just love siliconing the internal corners
View attachment 75826
Yup. That's what I do. But after cutting the 45 I use the grinder to take out the raw bit.
The amount of metro tiling I've seen where it's straight cuts in the corner, and sometimes even grouted in leaving a string of diamond shape grout.
Definitely time consuming scribing them in but looks the dogs bits!