Ok so JPG and CR2 (with embed JPGs) files works usually better than TIFF because they compress background and this points from static background doesn't mess with align. Masking is also a solution but for me it's most important to know my photos will align correctly as fast as possible. I get archaeological finds for few hours and I have to know did I do my photos for photogrametry good or not. Especially when I am doing hundreds of photos and several artifacts.
So that would be very useful to have option to change all files in folder with photos from JPGs to TIFFs not one by one files as now in 1.6.2 Metashape.
Anyway thanks very much for help and now I am now much more convinced that my work will give nice 3d models results