is 11 layout.tsx files normal or am i nesting route groups wrong Routing

The trap at eleven layouts is data. Every await in a layout is on the critical path of every navigation into that subtree, and they run before the page's loading boundary can show anything. Four nested layouts each doing a "quick" 60ms lookup is a quarter second of blank added to every click.

Audit it: grep your layouts for await. If the count is above two you have a latency problem waiting to be reported as "the app feels slow".

The number is not the problem. The question for each one is "does this own something that persists across navigation?" - a nav, a provider, a shell that must not remount. If the answer is no and it just wraps children in a div, delete it and put the div in the page.

Two things worth knowing while you are in there, because they explain most confusion at this stage:

• Layouts do not re-render on navigation between their children. That is the feature. It is also why state in a layout survives and state in a page does not.
• A layout cannot read searchParams. If you find yourself wanting that, the thing you want is a page or a client component reading the hook.

Eleven with real jobs is fine. Eleven where four are decorative means you have four to delete.

Most apps I have worked on land on three: marketing shell, app shell, auth shell. Everything below that is a component that a page renders, not a layout.

Route groups are for when two sets of routes need genuinely different chrome at the same URL depth. They are not for organising files - your editor already does that.

Also learn the difference between layout.tsx and template.tsx before you need it rather than after. I spent a day on "why does my mount animation only play once" and the answer was one filename.

Small thing that saved me a lot of squinting: name groups after the audience, not the feature - (public), (signed-in), (admin). When you have eleven of anything the names carry more weight than the structure.

eleven layouts, twenty five pages, and one of them is definitely a div with p-4 on it. we have all been there.