Its very easy and every person can do it easily. I also did the vertical alignment of the text box for my website's videos https://www.melbourneosteopathycentre.com.au/. You just have to follow these guidelines.
Right-click the text box for which you want to set vertical alignment.
On the shortcut menu, click Format Text Box.
In the Format Text Box dialog box, click the Text Box tab.
In the Vertical alignment box, select Top, Middle, or Bottom.
Click OK.

If Figma got this feature, XD needs to match it:
https://help.figma.com/hc/en-us/articles/360039956634-Explore-text-properties

Come on guys it's 2022... As a designer, you got crazy, cause developed live versions never looks like your prototype!

I'm not sure but probably this feature (desperately needed tbh) could also help with this one, since we have a really hard time handing over correct textboxes since they behave differently between XD and HTML. We thought of a workaround to place the text vertically centered in the textbox, but since this is not even possible we can't even give this a try.

https://adobexd.uservoice.com/forums/353007-adobe-xd-feature-requests/suggestions/38761813-have-text-boxes-match-font-size

Please focus on the CORE of all user interfaces. Typography and Copy.
It's frankly ludicrous that vertical alignment of text within a text box is not just a standard feature - I can do that in Powerpoint!
Bulletpoints and OpenType font support would be nice too.
You know these are features that you're losing customer to Figma for.
Here's my current scenario. I have one master XD file and I plan to translate it into a bunch of languages with Lokalise. I want to define a vertical area where text will be centred and if a string is longer (e.g. 3 lines of copy becomes 4 in German) text will still be centred. Instead, I'll have to manually centre each text layer.

Incredible ! I have been voting for all the votes about typographic features and I can't believe that they where requested since 2016...

Reasons like this is why I moved away from XD and wrote this post: https://bootcamp.uxdesign.cc/adobe-xd-where-did-it-go-wrong-500581d82127

And here we are, in February 2022, still missing this.

You know Microsoft Word can do this.

Hilarious that this doesn't exist yet

I agree, it is essential

Designers desperately need this to test out responsive scenarios, otherwise manually resizing all text boxes on the page is a tedious workflow. Please add this feature!

Adobe, this is a basic requirement. Come on!

This is a basic requirement for layout software! Competitors have it. Period.

Por favor sumen esta función de alineación de texto vertical con opciones de middle, top or bbottom. Sketch y figma lo tienen hace mil y dificulta muchisimo trabajar en XD sin esta función.

In fact, in other software, the size of the line height will affect the height of the text box, which is the correct way to deal with it

Adobe team: This feature is massively important for repeat grids where you can't simply resize/reposition the text box, because it will break your grid. See example attached.

Por favor prioricen esta característica en Adobe XD que ya cumplió 5 años en el backlog y literalmente me vuelve loco ver el texto desajustado. Cuando ya no puedo soportarlo más regreso a Figma, pero después debo volver a XD por costumbre a Creative Cloud. ¿Cuántos votos o qué más podemos hacer para que esta solicitud no cumpla 6 años en el backlog?

HOW IS THIS STILL IN THE BACKLOG! 5 YEARS!!!! Who is managing the backlog...how did voice commands and 3d transform beat basic text controls in importance? Everyday adobe makes me regret not going with Figma. Not sure how much longer i can put off transitioning client work over. Probably before next CC billing cycle I think.

There is no vertical alignment? Why is adobe XD so weak in features? and why is adobe so slow to update? It seems like this app is being developed by a couple of junior programmers and nobody cares about it.