Four card feature section (Grid and Tailwind CSS)

What are you most proud of, and what would you do differently next time?

Doesn't look as bad as I thought:)

What challenges did you encounter, and how did you overcome them?

I don't know enough about CSS and Tailwind. I tried to do it only with flexbox, but to no avail. I switched to grid to display the 4 cards.

What specific areas of your project would you like help with?

I used absolute positions for the icons, but maybe I'm missing something simpler?

Is it possible to do the 4 cards in that pattern with Flexbox only? (And still have this intermediate state with 2x2?)

If someone with experience in Tailwind and CSS could give me some directions, I would be forever grateful ;)