Thank you all for your opinions and contributions.
From the responses, I can see that we can standardize the icon for delete at least, and I will create Jiras and update them as I come along the situations in which an inconsistency occurs.
I will not proceed with proposals to remove icons from the interface.
The standardization of other icons (rename, move, cancel, source, etc) I will proceed with a specific proposal to be discussed further.
Thank you all for your contributions!