I'm comfortable using a terminal, but with my Linux machines s common pattern is:
Need to get some software working. Find how to fix it, edit some config files.
Months later I run a system update and it's starts asking me about merging the changes I made to various files. What were they for again? Are they still even necessary with the update or are the values I changed no longer used?
Then sometimes, something I installed is no longer supported, or needs a manual update because of how I installed it.