I have noticed a few changes in the way this web site is functioning.
First pages have a habit of going into large print and offering you a summary. Sometimes you can get out of this mode by clicking around the topic but I am not too sure what I click and where.
Second the 'back" button does not work like it used to. Instead of taking you back to the previous page, it shows the advert for buying stuff from Arduino.
Hold on there, @pert. I use DuckDuckGo on a Win 11 machine, and I get the same abberation @grumpy_Mike does; it began a few days ago. Doesn't happen every page refresh, maybe one in 10. I'll try to get better stats today. In my case, it automagically goes away after a second or so, so it's very difficult to get a screen capture to illustrate, but it's like the page is being drawn, then resized on the fly.
I realize that due to the different browsers, you may want this to be raised as a separate thread, but I think there's a commonality in both the description and the timing. Sumthin' changed!
That leaves one remaining item reported by @Grumpy_Mike:
The nature of the problem isn't really clear to me. The screenshot shared in post #5 shows a menu that appears to be associated with the ❮ icon ("Show the previous page"), and which contains two items named "Start Page". The "Start Page" is the page Safari shows by default when you haven't opened a URL in the browser.
There isn't enough information for me to be able to investigate this. It seems to be to be a Safari issue rather than an Arduino Forum issue. I don't have any experience using Safari, and only very rarely even use a macOS machine, so I'm not very well equipped to provide support in usage of Safari.
I do note that in the screenshot you can see four different Safari windows. So maybe the reason the ❮ icon isn't leading back to the previous page is because the page was opened via an "open in new window" operation was performed, rather than opening the link in the current browser tab?
Fair enough, it may not be exactly the same aberration, my bad; however, given the timing, is it likely there have been multiple changes to the Discourse tool, say in the last week? If only one change has occurred, I do realize a new version with more than one feature is, of course, quite possible as well. Do we need, then, to move that to a separate thread?
I don't have examples, because it's proving fiendishly hard to reliably cause the issue, and twice as hard to actually capture an image before it self-corrects. Guess I'll just stay silent now, unless I can capture the necessary evidence.
I generally prefer to use a dedicated forum topic for each distinct subject matter. The use of a single topic for discussion of multiple distinct subject matters means a lot of extra reading for anyone who is interested in one specific item under discussion, but is then required to read through all the posts on the other subject.
Of course "distinct" is subjective. The problem you observed is definitely distinct from the appearance of the "Summarise" button reported by @Grumpy_Mike, since that is about a specific feature of Safari. It is possible the other items reported by @Grumpy_Mike are at least distantly related to the problem you observed.
I have no BACK and I almost never use it as I learned a long time ago it messes up the browser.
NB I am talking about the keyboard back next to the left-facing nav arrow.
If you would like to see the "Reader" view mentioned by @bfobferer, you can do that by opening a forum page in Safari and then selecting View > Show Reader from the macOS "menu bar".
If you manage to open the Safari Reader on the I am new and am asking for help topic, you will see it looks exactly like the format shown in the first screenshot shared in post #3. I don't get that "Summarise" button, but that is probably due to a difference in configuration of my browser (I don't find AI features in applications to be useful so I always disable such features if given the choice).