That is odd.  If its an option, you might consider a fresh install of 22.04 and then just the few steps.  Its possible something else was changed or didn't reset fully as expected, but I know a full reload can be a ton of work and disruption.  I don't know which script version they had in the blog, but attached is the very final one that I am using now that works.  If you go the qemu route, I will warn you ahead of time it is not that simple even after you get the custom compile done because you have to catch the right sub part of the flow and it never seemed to be a single verb, only a combination in sequence that worked.  i.e. even if you record all the verbs that make it work in windows then just playing them all back doesn't work because windows leaves it in an off condition and turns back on when needed.  Anyway, it took a lot of trials to find a subset that worked consistently.  Yes, mine has an hdmi, but just the intel graphics.  Perhaps that could be involved, but I don't have access to the 15" laptop to try.  Here is my output from pacmd list-cards.  If there is any other output that would help you then let me know...

1 card(s) available.
    index: 0
	name: <alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic>
	driver: <module-alsa-card.c>
	owner module: 21
	properties:
		alsa.card = "0"
		alsa.card_name = "sof-hda-dsp"
		alsa.long_card_name = "SAMSUNGELECTRONICSCO.LTD.-930XED-P07RGE-NP930XED_KB2US"
		alsa.driver_name = "snd_soc_skl_hda_dsp"
		device.bus_path = "pci-0000:00:1f.3-platform-skl_hda_dsp_generic"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "51c8"
		device.string = "0"
		device.description = "sof-hda-dsp"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	profiles:
		HiFi: Play HiFi quality Music (priority 40768, available: unknown)
		off: Off (priority 0, available: unknown)
	active profile: <HiFi>
	sinks:
		alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp_5__sink/#1: sof-hda-dsp HDMI / DisplayPort 3 Output
		alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp_4__sink/#2: sof-hda-dsp HDMI / DisplayPort 2 Output
		alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp_3__sink/#3: sof-hda-dsp HDMI / DisplayPort 1 Output
		alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp__sink/#4: sof-hda-dsp Speaker + Headphones
	sources:
		alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp_5__sink.monitor/#1: Monitor of sof-hda-dsp HDMI / DisplayPort 3 Output
		alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp_4__sink.monitor/#2: Monitor of sof-hda-dsp HDMI / DisplayPort 2 Output
		alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp_3__sink.monitor/#3: Monitor of sof-hda-dsp HDMI / DisplayPort 1 Output
		alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp__sink.monitor/#4: Monitor of sof-hda-dsp Speaker + Headphones
		alsa_input.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp__source/#5: sof-hda-dsp Headphones Stereo Microphone
		alsa_input.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp_6__source/#6: sof-hda-dsp Digital Microphone
	ports:
		[Out] HDMI3: HDMI / DisplayPort 3 Output (priority 700, latency offset 0 usec, available: no)
			properties:
				
		[Out] HDMI2: HDMI / DisplayPort 2 Output (priority 600, latency offset 0 usec, available: no)
			properties:
				
		[Out] HDMI1: HDMI / DisplayPort 1 Output (priority 500, latency offset 0 usec, available: no)
			properties:
				
		[Out] Speaker: Speaker (priority 100, latency offset 0 usec, available: unknown)
			properties:
				
		[Out] Headphones: Headphones (priority 200, latency offset 0 usec, available: no)
			properties:
				
		[In] Mic2: Headphones Stereo Microphone (priority 200, latency offset 0 usec, available: no)
			properties:
				
		[In] Mic1: Digital Microphone (priority 100, latency offset 0 usec, available: unknown)
			properties: