Suggestions Menu Nav Bar JS critical files

Just like suggest to load only one file of js with the options selected in nav bar etc. (you will need many files with all the options possible)
Search in bar, click menu, menu, button back to top, etc, instead of load many js

menu.min.js
dropdown-click.min.js
navigation-search.min.js
back-to-top.min.js

Another suggestion is, if I disable the nav bar, no load the JS same maybe for CSS
Google say that are critical request, and maybe is good reduce it, and some files really no are needed if you disable the option:

js/dropdown-click.min.js – 664,723 ms, 2,28 KiB

When I use preload rel in htaccess, the LCP down 50% or more, that help, maybe can be good to preload directly by default or with one option in customized

Now I no use the menu bar, because I want down the INP, I dont no if is the menu, jetpack carousel gallery or both.