I do, I link the reviews. But using different apps for all of them is tiring, and some things don’t neatly fit. I could probably look for a board game review app, but for instance game novels (like Vampire the Masquerade: Shadows of New York) don’t neatly fit into the apps

For instance I can scarcely find TTRPG books on Storygraph to even review them

Ah, I gotcha. Hmm… I know it’s a tad bit harder to drive traffic, but you could always create a blog? Something simple that allows text/photos/video. That way it’s all in one place that’s specifically yours. Blogger. Wordpress. Etc.

I think you can write reviews in boardgamegeek.com ratings? But you're right, books wouldn't be showing up there.