JavaScript Rendering Still Hurting Indexing.....?

Noticed a few sites losing visibility after going all-in on JS frameworks. Rendering delays seem to break crawler access to main content.
Static renderers and HTML snapshots help, but they’re not always scalable.

Curious what methods you’re using now, hybrid rendering, SSR, or something else?

Not about tricks, just trying to figure out what still ensures full content gets indexed in real conditions.