Hey there! From what I've seen, the solution looks presentable on most desktop and mobile displays (in landscape orientation as well), which is great. I'm not at all familiar with Tailwind, and there's a lot to CSS Grid, so the class naming convention and the overall styling implementation seems both daunting and impressive to me. I haven't tackled this challenge myself, but there are a couple of things I can point out that I think are worth mentioning.
The paragraph in the main grid item (Section 2 on Desktop and Section 1 on Mobile) doesn't have "text-align: center". This is unnoticeable on most displays, but the challenges that I've tried always mention testing down to 320px in width, at which point this aspect becomes apparent. Since the h1 is centered, I believe it would be more visually appealing if that was the case for the p element as well.
Another grid item (Section 4 on Desktop and Section 2 on Mobile) could use an adjustment of some kind in regards to its sizing, as there are certain displays where the full text can't be read, and the final word appears to be too close to the bottom at full size.
The grid item on the upper right (Section 3 on Desktop and Section 4 on Mobile) could use a larger maximum size for its image in order to match the requested design.
There's a span inside an h2 (Section 7 on Desktop and Section 6 on Mobile) that pokes out of the grid item box on certain display sizes.
Lastly, the words "quicker" and "faster" could use i or em tags in order to give them the appropriate styling.
I find it easier to point out flaws than I do to give credit where credit's due, so I imagine that up to this point my feedback may seem unduly harsh. Assuming that's the case, I would like to reiterate that overall the solution looks fantastic, and to say that I think you have the potential to be even better.
Keep up the good work!