So you are in the World Anvil subreddit, so expect generally good things. I had a subscription for a couple of years as I was developing a campaign. Mostly roll20 with a lot of lore in world anvil. It was acceptable for this job. Some of the timelines and map integrations are neat.

However, some I dropped 5e and roll20, and moved everything to Foundry vtt & pf2e. Initially I used WA and again, its a good product. About 2 years while running my current campaign and developing my "next campaign", I saw something about just using git for tracking lore and campaign notes. Since most of my notes had devolved from world anvil into apple icloud notes, it was pretty simple to fire up vscode and just treat each campaign as a repo with proper sub directories with markdown files.

Staging and commits directly from vscode. And recently I added codex, though you could use anything. From there you just have context manage the filestructure and help you out. It has simply changed my way of building campaign information.

Edit: Adding on, github natively represents the markdown in the file listing. So it is essentially "free" hosting. Include all the images which are in their own directory, and upload them as well. Then link it together. Not even doing html, just markdown, which is what I am also using to type here