Please remove the following fragment:

@media (min-width: 720px) {
	.talkheader {
		width: 80%;
	}
}

These styles are not necessary on desktop (tmbox already has styles to set it to 80% width), and cause this template to display at an unusually narrow width in the new version of mobile talk pages (visit e.g. [1] on your desktop and click "Learn more about this page" to see). Matma Rex talk 09:54, 20 January 2023 (UTC)[reply]

 Not done I did this in Special:Diff/1134876702, assuming you knew what you were talking about, and the result was that the template did actually display narrower on my screen (legacy vector on Desktop). Cc Izno, who seems to have previously tried the same thing. * Pppery * _{it has begun...} 05:31, 21 January 2023 (UTC)[reply]

Thank you for testing, that is my bad. I proposed these changes to several templates and I guess I didn't test this one well enough. It looks like the other ones have some nested elements forcing them to increase width, but this one doesn't.

Instead of removing, please replace it with the following:

@media (min-width: 720px) {
	.talkheader {
		min-width: 80%;
	}
}

Thanks and sorry about that. Matma Rex talk 06:37, 21 January 2023 (UTC)[reply]

Given the past mishap I don't trust myself to use my template editor rights to implement this, but another template editor is welcome to. * Pppery * _{it has begun...} 14:59, 21 January 2023 (UTC)[reply]

 Not done for now: Discussing at template talk:article history for a minute. Izno (talk) 22:23, 25 January 2023 (UTC)[reply]

Please replace:

.talkheader-body {
	display: flex;
}

With:

.talkheader-body {
	display: flex;
	flex-wrap: wrap;
}

This will allow the current up-to-4-column layout of the template to be shown in fewer columns instead, depending on available screen width, when using new version of mobile talk pages (visit e.g. [2] and click "Learn more about this page" to see, either using your phone or resizing the browser window on desktop).

(This also affects desktop Vector 2022 with limited width mode enabled, which seems like a good change to me, its merits notwithstanding.)

While we're here, please also remove this fragment:

.talkheader-help > *,
.talkheader-policies > *,
.talkheader-shortcuts > * {
	flex: 1 1 auto;
}

It does not do anything. Matma Rex talk 10:43, 20 January 2023 (UTC)[reply]

 Done * Pppery * _{it has begun...} 05:27, 21 January 2023 (UTC)[reply]

As seen in its use on Talk:Charles Robert Jenkins, why has the "Article policies" become its own lonely column? — Fourthords | =Λ= | 17:21, 21 January 2023 (UTC)[reply]

That would be a consequence on my change discussed above – rather than getting squished, the columns move to a new row. Do you think this needs to be changed? Matma Rex talk 19:19, 21 January 2023 (UTC)[reply]

I just wanted to raise attention about what looked like a glitch, is all. If that implementation is consensus, I've no opinion one way or another. — Fourthords | =Λ= | 22:37, 21 January 2023 (UTC)[reply]

I just noticed that this template carries the {{template display|nomobile}} warning box. However, it appears this template is visible in mobile view (from a desktop). For this example, I will use the Talk page for The Addams Family (1964 TV series). I had switched {{Archives}} (alias {{Archivebox}}) for {{Talk header}} accompanied by {{User:ClueBot III/ArchiveThis}} (I noticed the "nomobile" warning afterward).

1. Go to Talk:The Addams Family (1964 TV series).
2. Scroll down to the very bottom of the page.
3. In the small text at the bottom is a link for "Mobile view"; click on this.
4. On the mobile version, the talk page header doesn't initially display. However, after the list of sections is a bar that says "Read as wiki page". Clicking this will display the talk header with archives.

The point I wish to raise is that I didn't want to remove the "nomobile" warning box without first reporting what I have seen, in case there is more involved. — CJDOS, Sheridan, OR (talk) 10:54, 8 February 2023 (UTC)[reply]

There has been recent work here on the software side and the template can now be removed. Izno (talk) 20:54, 10 March 2023 (UTC)[reply]