Responsiveness of text at the right side of screen

https://share.vidyard.com/watch/s5W1DPzS4187hpY4t9iPSz?
https://codepen.io/Antony-Collin/pen/WNYejKZ

As you can see in the vidyard, I'm trying to fix the responsiveness of the text at the top right corner of the screen, it's a flexbox with a tags in it, made it align-items: end; so that it displays at the right side of the header. I could easily fix it by putting media queries at breakpoints but I have no idea if it's good pratice, I feel like there's a better way to make the text resize normally. I have no idea what to do.
Vidyard
Vidyard video
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