Genuinely curious: what's the problem you're trying to solve with Git plugin that the official Obsidian Sync [1] doesn't solve natively (besides cost)?
I've been using Obsidian Sync for a year, and it works flawlessly for my use case. Is syncs not only notes, but also configuration, plugins, allows creation of multiple vaults, works on mobile, fine-grained control over which folders to sync in each device, and even allow controlled sharing with collaborators. Oh, and full encryption with user-provided key, which is a must. All for $96/year.