About how reduce/reduce conflicts are managed

Hello !

While converting this grammar 
https://github.com/diku-dk/futhark/blob/master/src/Language/Futhark/Parser/Parser.y 
to be used in https://mingodad.github.io/parsertl-playground/playground/ 
I found that bison/byacc/kmyacc reports 35 reduce/reduce conflicts but 
parsertl reports then as resolved.

Then I found that https://github.com/BenHanson/parsertl14 that I'm using 
was using precedence to solve reduce/reduce conflicts like "lemon" and 
"happy" does.

Then I started asking then about that decision/issue 
(https://github.com/BenHanson/parsertl14/issues/15 , 
https://sqlite.org/forum/forumpost/79cbc282a5 , 
https://github.com/haskell/happy/issues/260 ) and there is doubts about 
how best to handle it, including questioning how bison does it.

Can someone help in clarifying this ?

Cheers !