Leather boots definitely need care, especially in this country. I do my best to maintain my three pairs.
Brush, wash, coconut oil and shoe cream.
Other than that, totally agreed.
Discussion
What are you using and what does the damage looks like? I'm guessing it's mostly about fighting salt?
Yearly maintenance to fight winter wear mostly, yes. Salt is a big one but general wear is good to be mindful of as well. Typically I aim for every six months or so to do a deep clean/maintenance session. Sometimes that's just clean, sometimes it's more.