I am using portable 2.82a on Windows. After I tried to search it, turns out there is inconsistency with the text. In the Keymap, I can't find "frame selected", and instead it is actually "View Selected".
If you want to assign a key that always inserts the LocRotScale key at the current time, you have to do the following:
Go in the Blender Preferences, under Keymap and search for "Insert Keyframe".
There will be an entry under Outliner, unfold the "Insert Keyframe" by clicking on the small triangle in front of the checkbox.
You need to copy the "anim....
In Edit mode with your entire mesh selected, under the Mesh menu go to "Clean Up" and click "Limited Dissolve" this should remove the triangulation on the quads and make edge loop cutting work as expected.