To better organise your own presets, you can start the preset name with a character like tild ~ underscore _ or hash #.
This means your own presets are grouped together at the top or very top of the list of presets.
Because these presets are saved as standard XML text files, they can be easily copied and shared with others.
There is a known bug that gradients with transparency in conjunction with some other filters causes image distortions as you can see by the doubling of the text in your screenshot. I am not exactly sure what all the conditions are and struggling to reproduce it now. Perhaps using a transparent color clip is a part of it. Also, filters are processed top-down; so you probably want to put the text after the gradient.
Also, some other disturbing things in your screenshot:
You are using proxy mode without preview scaling → you are not gaining the full benefit of proxy.
Your file name on V1 looks like the name of a proxy file, but these names should not appear unless you directly open the proxy file. Rather, the original media file name should appear along with “(PROXY)” after it.