Which font(s) does Google Chrome use by default?

When designing websites, I’ve noticed that Chrome and Firefox have different default fonts, or at least, they look different somehow. Rather than serving fonts to all users, I think what I’d like to do is just use Chrome’s default font, and serve that to Firefox users. What font(s) does Google Chrome use by default when websites don’t specify a font?

Also, apologies if this question doesn’t fit here, I wasn’t quite sure if UX includes UI development.

How can I make the Ubuntu see LaTeX fonts installed through TeXLive?

I have Lubuntu 19.04 and I want it to be able to see TTF and OTF fonts installed via TeXLive.

Note that I did not install TeXLive via the package manager (for some reason it was giving me an outdated TeX distribution), but I did it through the install-tl script that is recommended in the tug.org website. As a result, LaTeX fonts are not installed in the default directories but rather in their own texlive directories, so Ubuntu does not see them by the default.

I know TeX fonts are available via the package manager, but add rather not double install them since they’re already there ( and to avoid any possible conflicts).

So, is it possible to make my OS see the available TeXlive fonts?

Thanks.

Can screen readers interpret Unicode styles fonts such as bold and italics?

I have seen serval social media channels using Unicode to make part of their text bold or italicised on websites such as Twitter, where this sort of thing is usually not possible.

It crossed my mind that this could interfere with accessibility for screen reader users – especially since on Twitter, styled text seems to count for double the characters (e.g. “𝗛𝗲𝗹𝗹𝗼” counts as 10 characters).

Can screen readers read this sort of text as easily as regular text?

Examples:

𝗛𝗲𝗹𝗹𝗼 π˜π—²π˜…π˜ π˜€π˜π—Ώπ—Άπ—»π—΄

π»π‘’π‘™π‘™π‘œ 𝑑𝑒π‘₯𝑑 π‘ π‘‘π‘Ÿπ‘–π‘›π‘”

Helvetica and similar fonts containing cyrilyc letters

I need to setup Helvetica font on website, downgrading to other similar fonts when helvetica not available. Fonts mast contain cyrilyc. Must be system font, and work on all systems.
I dont known is SF Pro contain cyrilyc. It even prefered then helvetica.
Please help to find all similar system fonts on all OS/device.

body { font-family: "SF Pro", "Helvetica CY", "Arial", sans-serif; } 

Which text fonts survive images compression the best? [on hold]

I’m creating diagrams in Office Excel for people in my community and the platform it is uploaded on has a tendency to compress the images. Sometimes this results in near unreadable text. It is uploaded as an image because that is the desired format of the community.

Can you give me some advice on which fonts would likely survive compression the best?

Best regards, Kenneth