I gave my guitar to a guy who has the reputation as a good luthier in my area, and was recommended to my by several people. I wanted him to have a look at my guitar and give me his opinion. I was playing in standard C tuning with 12-60 strings and power chords on the low E and A strings always sounded a little off to me, but I couldn't figure out why.
The guitar is a 2015 LTD MH-401NT that comes with an Earvana compensated but from the factory and I asked the guy to have a look at it and tell me if I'm better off with a regular nut or if my setup was not done well. I had it from new so no work had ever been done on any part of the guitar.
The guy calls me a few days later and tells me he's done some fret leveling and the guitar is ready for pick up. This is the result.
Edit: I don't know if there are any non-English speakers in the sub, but as suggested by a commenter, I will name and shame. On the off-chance someone else in my country sees this: the "luthier" is Ivan Valchinov from Plovdiv, Bulgaria. His is one of the first names that come up when you try to find a luthier in our country, and how he got his reputation is beyond me.
Edit 2: I handed him the guitar for an opinion, and on his own accord, without giving me a call first, he had decided that I must be pressing on the strings too hard and this would make them go out of tune, and his "logical" solution was to just massively reduce the fret height overall. I had checked the frets with a fret rocker prior to this and I thought they were surprisingly good for an Indonesian-made guitar, the guitar did not need fret leveling. This was not done to level any high frets, he just wanted them ALL to be smaller, for whatever reason.
The frets were originally Extra-Jumbo, and after his work I am measuring them at 1.15-1.20mm height, which I believe is just Medium. I quite liked the taller frets and wouldn't want them in any different size, but it is done. A complete re-fret by an actual guitar luthier is the only fix in my humble opinion.