bt_hide.py

import bpy


all_collections = []
def get_all_layer_collections():

    def get_all_collections_rec(parent):

        for child in parent.children:

            global all_collections

            all_collections.append(child)
            try:
                get_all_collections_rec(child)
            except:
                pass

    rec_start = bpy.context.view_layer.layer_collection
    get_all_collections_rec(rec_start)

    return all_collections


def hide_view_set_on_visible(unselected):

    for lCollection in get_all_layer_collections():
        if lCollection.visible_get() == True:
            for obj in lCollection.collection.objects:
                if obj.select_get() != unselected:
                    obj.hide_set(True)


def hide_view_clear_on_visible():

    for obj in bpy.data.objects:
        obj.select_set(False)

    for lCollection in get_all_layer_collections():
        if lCollection.visible_get() == True:
            for obj in lCollection.collection.objects:
                if obj.hide_get() == True:
                    obj.hide_set(False)
                    obj.select_set(True)