Unclear 'title' provenance in DXF Export's 'use layer title as name' option

[gacarrillor]

What is the bug or the crash?

Before creating a PR to fix this, I'd like to know if there is any consensus on this matter. I wasn't sure on whether to post this issue in QGIS or QGIS Docs, but finally thought it fits better here in the QGIS repo.

The DXF Export dialog includes an option called Use layer title as name if set. However, it is not clear for users where is this layer title taken from.

A first guess could be the layer's metadata, but that's not correct. Currently, this layer title is taken instead from the QGIS Server properties. Apparently that was the original intention (see 555b7a4), so this is not a bug, it's just a matter of making it clear for users.

Documentation for this option does not help to reduce the confusion either.

Suggestion

I'd suggest that we add a tooltip to this option stating where the title is taken from. Namely, something like this:

Layer title is taken from QGIS Server properties.

The checkbox text would remain untouched.
Documentation will be updated accordingly.

Would that (specially the wording) make sense for you guys?
@DelazJ @nirvn @jef-n

Steps to reproduce the issue

1. Go to Project ► Import/Export ► Export Project to DXF…

The option is the first check box on the bottom group.

Versions

QGIS version	3.37.0-Master	QGIS code revision	721acbb43a5
Qt version	5.15.3
Python version	3.10.12
GDAL/OGR version	3.4.1
PROJ version	8.2.1
EPSG Registry database version	v10.041 (2021-12-03)
GEOS version	3.11.1-CAPI-1.17.1
SQLite version	3.37.2
PDAL version	2.3.0
PostgreSQL client version	14.11 (Ubuntu 14.11-0ubuntu0.22.04.1)
SpatiaLite version	5.0.1
QWT version	6.1.4
QScintilla2 version	2.11.6
OS version	Ubuntu 22.04.2 LTS
This copy of QGIS writes debugging output.
Active Python plugins
AppendFeaturesToLayer	2.0.0
InvisibleLayersAndGroups	2.1
asistente_ladm_col	5.0.0-dev
QgisModelBaker	6.3.2.1
multilayerselect	1.5.0
valuetool	3.0.15
quick_map_services	0.19.33
LoadThemAll	3.5.0-beta-2403011
processing	2.12.99
grassprovider	2.12.99
db_manager	0.1.20
MetaSearch	0.3.6

QGIS version 3.37.0-Master QGIS code revision [721acbb43a5](https://github.com/qgis/QGIS/commit/721acbb43a5) Qt version 5.15.3 Python version 3.10.12 GDAL/OGR version 3.4.1 PROJ version 8.2.1 EPSG Registry database version v10.041 (2021-12-03) GEOS version 3.11.1-CAPI-1.17.1 SQLite version 3.37.2 PDAL version 2.3.0 PostgreSQL client version 14.11 (Ubuntu 14.11-0ubuntu0.22.04.1) SpatiaLite version 5.0.1 QWT version 6.1.4 QScintilla2 version 2.11.6 OS version Ubuntu 22.04.2 LTS

This copy of QGIS writes debugging output.

Active Python plugins
AppendFeaturesToLayer
2.0.0
InvisibleLayersAndGroups
2.1
asistente_ladm_col
5.0.0-dev
QgisModelBaker
6.3.2.1
multilayerselect
1.5.0
valuetool
3.0.15
quick_map_services
0.19.33
LoadThemAll
3.5.0-beta-2403011
processing
2.12.99
grassprovider
2.12.99
db_manager
0.1.20
MetaSearch
0.3.6

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

No response

[gacarrillor]

Just for the record, this has been adjusted in https://github.com/qgis/QGIS/pull/57103/files#diff-3aa9d0ace8d624e995f382d12f585ff77e0bc69b7c0082a284d16db1ee20b605R2387 to always prefer layer metadata over QGIS Server properties.