Placeholder attribute an accessible name?

Hi all.

I came across this:


This input element has an accessible name<https://gbr01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.w3.org%2FWAI%2Fstandards-guidelines%2Fact%2Frules%2Fe086e5%2F%23accessible-name&data=05%7C01%7Ctom%40digitalaccessibilitycentre.org%7Cf01e35eb9f88470eaba308dab1e62faa%7C6cc99ebe9e6a4e39b564e5e9f1736548%7C1%7C0%7C638017899438185204%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ETpGHPcRdTLuW8aLz8v2h7fLDFMyLQfTxZBQbm80kVA%3D&reserved=0> because of its placeholder attribute.

Note: While the placeholder attribute is sufficient to provide an accessible name<https://gbr01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.w3.org%2FWAI%2Fstandards-guidelines%2Fact%2Frules%2Fe086e5%2F%23accessible-name&data=05%7C01%7Ctom%40digitalaccessibilitycentre.org%7Cf01e35eb9f88470eaba308dab1e62faa%7C6cc99ebe9e6a4e39b564e5e9f1736548%7C1%7C0%7C638017899438185204%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ETpGHPcRdTLuW8aLz8v2h7fLDFMyLQfTxZBQbm80kVA%3D&reserved=0>, a visible<https://gbr01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.w3.org%2FWAI%2Fstandards-guidelines%2Fact%2Frules%2Fe086e5%2F%23visible&data=05%7C01%7Ctom%40digitalaccessibilitycentre.org%7Cf01e35eb9f88470eaba308dab1e62faa%7C6cc99ebe9e6a4e39b564e5e9f1736548%7C1%7C0%7C638017899438185204%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=z9OaCudCR2l26wWCVLcjJtRPBGck%2Fwq9QNWgEgricMM%3D&reserved=0> label<https://gbr01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.w3.org%2FTR%2FWCAG21%2F%23dfn-labels&data=05%7C01%7Ctom%40digitalaccessibilitycentre.org%7Cf01e35eb9f88470eaba308dab1e62faa%7C6cc99ebe9e6a4e39b564e5e9f1736548%7C1%7C0%7C638017899438185204%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=YuFRNeyXq59uVQ4LnmsJMy49x3yBX8RdToEA%2F6D4I3Y%3D&reserved=0> that does not disappear when a user starts to enter data is still required for success criterion 3.3.2 Labels or Instructions<https://gbr01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.w3.org%2FTR%2FWCAG21%2F%23labels-or-instructions&data=05%7C01%7Ctom%40digitalaccessibilitycentre.org%7Cf01e35eb9f88470eaba308dab1e62faa%7C6cc99ebe9e6a4e39b564e5e9f1736548%7C1%7C0%7C638017899438185204%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ckJe0EXoeThCkscNd4nDwgtr8PbJup%2BTS2NXsYLjLYs%3D&reserved=0>.


Source: https://www.w3.org/WAI/standards-guidelines/act/rules/e086e5/


I was wondering if the PA can really act as the accessible name in absence of the label?

The reason for this is because how challenging that can be for screen reader users using mobile devices. JAWS and NVDA for example
Announce the placeholder text even when there is some text in the text field, however, is VO users for example make a mistake and type a letter in there and return back to the text field only the letter input is announced.

So my question is: although not ideal, is this really an acceptable way to provide an accessible name?

Thanks for your time!

Tom