This has never been different! Synced text actually supports only one formatting set.
If you want different text formatting of the same text from breakpoint to breakpoint, just have a closer look at the "1T/4T" tool:
More informatios here: https://helpx.adobe.com/muse/using/layout-responsive-sites.html (scroll down to "Format text in responsive layout".
I'm using "Format Text On Current Breakpoint" (just size changes), but now that I've made the sync text labels it's not working anymore.
Now I need to change all to a mobile layout I think...
Synched text is a feature to keep the text wording identical on desktop, tablet and phone layout (alternate layouts). You can’t – and never could – change text attributes layout-wise.
I’d suggest, that you don’t use alternate layouts, but different breakpoints (for example: one fixed width breakpoint for desktop, one fixed width breakpoint for tablets and a fluid width breakpoint for phones). Now you can simply achieve what you want by using the „1T/4T“ tool.
Yes, that's what I'm doing, but for the web update workflow, the text sync was an awesome feature because I just need to change the texts once.
The "demo" web is this one:
I've used the Sync Text for the name/age of the animal, so I don't need to change it twice for every profile but if I can't use it between breakpoints...
I know this kind of web would be easier with WooCommerce/Prestashop, but I've tried time ago and can't design the themes like I want to and the shelter doesn't have extra money for web maintenance, so I'm doing it for free like a volunteer and Muse was the answer
Thank you, Günter, maybe at follow updates the sync option allows different styles.
Hope, you understood correctly: Using breakpoints as I suggested, provides this feature "out of the box" without the need of "syncronised text".