Wireshark Preferences Capture Default interface

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Hello,

On Windows 10, Wireshark - Preferences - Capture - Default interface，what is the diff when default interface is selected or unselected?I tried, but seem to be no diff.

3.6.0 (v3.6.0-0-g3a34e44d02c9)

Compiled (64-bit) using Microsoft Visual Studio 2019 (VC++ 14.29, build 30040),
with Qt 5.15.2, with libpcap, with GLib 2.66.4, with zlib 1.2.11, with Lua
5.2.4, with GnuTLS 3.6.3 and PKCS #11 support, with Gcrypt 1.8.3, with MIT
Kerberos, with MaxMind DB resolver, with nghttp2 1.44.0, with brotli, with LZ4,
with Zstandard, with Snappy, with libxml2 2.9.10, with libsmi 0.4.8, with
QtMultimedia, with automatic updates using WinSparkle 0.5.7, with AirPcap, with
SpeexDSP (using bundled resampler), with Minizip.

Running on 64-bit Windows 10 (1803), build 17134, with Intel(R) Xeon(R) CPU
E3-1231 v3 @ 3.40GHz (with SSE4.2), with 16320 MB of physical memory, with GLib
2.66.4, with Qt 5.15.2, with Npcap version 1.55, based on libpcap version
1.10.2-PRE-GIT, with c-ares 1.17.0, with GnuTLS 3.6.3, with Gcrypt 1.8.3, with
nghttp2 1.44.0, with brotli 1.0.9, with LZ4 1.9.3, with Zstandard 1.4.0, without
AirPcap, with light display mode, without HiDPI, with LC_TYPE=Chinese
(Simplified)_China.utf8, binary plugins supported (21 loaded).

Regards, 7ACE