If you are having issues with uploading big files with e.g. #nextcloud and especially your #traefik (v3.x) setup - than have a look at the respond, write, idle timeouts. They were set to 60s as defaults with traefik 3.

The timeouts can be increased or deactivated as follows in for example the traefik.yml:
```
entryPoints:
web:
address: ':80'
transport:
respondingTimeouts:
readTimeout: 0s
writeTimeout: 0s
idleTimeout: 0s
```