Can't launch Quick Help after correctly following instructions

[jray@jr-dl ~]$ cd /usr/share/audacity
[jray@jr-dl audacity]$ cd help
[jray@jr-dl help]$ ls
index.html  m  man  manual  quick_help.html
[jray@jr-dl help]$ inxi -Fxz
Host: jr-dl Kernel: 4.19.0-4-MANJARO x86_64 bits: 64 compiler: gcc
v: 8.2.1 Desktop: N/A Distro: Manjaro Linux
Type: Laptop System: Dell product: Latitude E6410 v: 0001 serial: <filter>
Mobo: Dell model: 0HNGW4 serial: <filter> UEFI: Dell v: A16
date: 12/05/2013
ID-1: BAT0 charge: 37.2 Wh condition: 37.2/48.8 Wh (76%)
model: Samsung SDI DELL PT43699 status: Full
Topology: Dual Core model: Intel Core i5 M 560 bits: 64 type: MT MCP
arch: Nehalem rev: 5 L2 cache: 3072 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 21290
Speed: 1241 MHz min/max: 1199/2667 MHz Core speeds (MHz): 1: 1396 2: 1377
3: 1382 4: 1354
Device-1: Intel Core Processor Integrated Graphics
vendor: Dell Latitude E6410 driver: i915 v: kernel bus ID: 00:02.0
Display: x11 server: 1.20.3 driver: intel unloaded: modesetting
resolution: <xdpyinfo missing>
OpenGL: renderer: Mesa DRI Intel Ironlake Mobile v: 2.1 Mesa 18.2.4
direct render: Yes
Device-1: Intel 5 Series/3400 Series High Definition Audio
vendor: Dell Latitude E6410 driver: snd_hda_intel v: kernel
bus ID: 00:1b.0
Sound Server: ALSA v: k4.19.0-4-MANJARO
Device-1: Intel 82577LM Gigabit Network vendor: Dell Latitude E6410
driver: e1000e v: 3.2.6-k port: 7040 bus ID: 00:19.0
IF: eno1 state: down mac: <filter>
Device-2: Broadcom Limited BCM43224 802.11a/b/g/n
vendor: Dell Wireless 1520 Half-size Mini PCIe Card driver: wl v: kernel
port: 7000 bus ID: 02:00.0
IF: wlp2s0 state: up mac: <filter>
Local Storage: total: 1.20 TiB used: 17.99 GiB (1.5%)
ID-1: /dev/sda vendor: Seagate model: ST9320423AS size: 298.09 GiB
ID-2: /dev/sdb type: USB vendor: Seagate model: Expansion size: 931.51 GiB
ID-1: / size: 284.06 GiB used: 17.99 GiB (6.3%) fs: ext4 dev: /dev/sda2
ID-2: swap-1 size: 8.18 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda3
System Temperatures: cpu: 57.0 C mobo: N/A sodimm: 44.0 C
Fan Speeds (RPM): cpu: 2893
Processes: 173 Uptime: 2h 47m Memory: 3.72 GiB used: 1.51 GiB (40.6%)
Init: systemd Compilers: gcc: 8.2.1 Shell: bash v: 4.4.23 inxi: 3.0.27

Which version of Linux?
Which version of Audacity? (look in “Help > About Audacity”)
What is your experience level on Linux (beginner / intermediate / advanced)?

Sorry for the belated reply.

As above, the Linux version is 4.19.0-4.

Audacity, like all packages installed and updated via yay, is kept regularly up-to-date.

At the moment I have 2.3.0-1 installed:

[jray@jr-dl ~]$ yay audacity
5 aur/audacity-wxgtk2 2.2.2-3 (+3 0.45%) 
    Record and edit audio files
4 aur/darkaudacity-git 2.1.3.r1237.gec4838600-1 (+5 0.02%) 
    A program that lets you manipulate digital audio waveforms
3 aur/audacity-git 2.2.1.r31.gdb4528069-1 (+10 0.03%) 
    A program that lets you manipulate digital audio waveforms
2 aur/audacity-extras 2.2.1-1 (+10 0.38%) 
    All nyquist plugins for audacity
1 community/audacity 2.3.0-1 (5.4 MiB 24.5 MiB) [pro-audio] (Installed)
    A program that lets you manipulate digital audio waveforms
==> Packages to install (eg: 1 2 3, 1-3 or ^4)

I would say I am somewhere between beginner and intermediate with Linux, using it since around 2016/17 (first Ubuntu, then Manjaro since April 30 2018).

As above, the Linux version is 4.19.0-4.

Audacity version as of now is 2.3.0.

I would say that my proficiency with Linux is between beginner and intermediate.

Audacity 2.3.0 is for Windows and MacOS only.
The current release for Linux is 2.2.2.
The next release for Linux will be 2.3.1 and is scheduled for January.

The ZIP manual for 2.3.0 was packaged slightly differently from previous version, which is why the instructions do not work. The ZIP manual for 2.2.2 is packaged correctly for the installation instructions.