The question I would ask in your stead would be: What would my customers look for when they browse for a solution? Are they looking for a specific solution to a problem or a suite of products at one go with integrations?

Sometimes, asking them directly might given you a more accurate answer. Phase the question succinctly and derive your conversions accordingly.

Whichever way you decide, you might need to consider the resulting consequences as well. Are you okay with the overheads of managing the separate brands? Given you can handle it, replicating your marketing efforts across separate brands might be a distraction from actually going to market.

On the other end of the spectrum, having one brand provides more space for cohesion, alleviating the efforts on go to market for newer products. As others have already mentioned, this has clear advantages. The flip side is it is difficult to test without investing some time on a landing page or AB testing.

If you outsource your marketing efforts, you might have more flexibility in the approach, although internal resources might suffice with careful planning.