Okay, this is interesting! I thought it's just a cut down version of Google's base packages. I didn't realize it's a complete reimplementation.
So, I complete LineageOS installation without MindTheGapps, then install fdroid, add the microG repo, To install any Playstore dependent application use aurora store.
This comes preloaded with the MicroG settings app, so no need to install the extra FDroid repo. But otherwise yes, Aurora Store gets you access to all necessary proprietary apps.
Yes that's all I do, official LineageOS image for Pixel 6 (I bought it used on eBay).
I haven't tried it but apparently Aurora Store also supports login with your Google account, which means you can download apps you've paid for on the Play store directly.
So, I complete LineageOS installation without MindTheGapps, then install fdroid, add the microG repo, To install any Playstore dependent application use aurora store.
No gotchas?