Homepage design feedback

About the design: it's great, I loved it! (I'm a web developer and see a lot of sites daily)

I also like the product a lot, features, etc. I've bookmarked the website

One thing that may help, but I don't know if it's just me:

At first when I saw the above the fold section, with "Keep everyone aligned and up to date" and the small paragraph, I thought the product was some sort of Slack alternative.

Only with the features right below the (giant) image I realized what your product was about, at this line: "Update your users on what's important to them with the right notification at the right time."

So I would think about finding some different wording for the very first title: "Keep everyone aligned and up to date", which seems too generic
Part of me thinks that using first this same string: "Simplify your product communication with Onset" as the main/first title would be an improvement, and more clear

But I don't know, maybe your target market will understand immediately with the current title

(even though I have a couple of side projects/products so I could be one of your users :D)

Another note about the main product image right below the first title and paragraph: When I first saw it, I didn't understand completely the product (I was still thinking it was some sort of Slack alternative)

Hello Sonny! I carefully scrolled through your site. Below you can see what I noticed.

General

• What is the purpose of "🔥 ..." on the top of the page?
• "Keep everyone aligned and up to date" title is great, but I miss the answer for "with what?". I would add "with your product" at the end of it.
• In phrasing "...all in one central location" the "central" word should be removed in my opinion. It doesn't sound right.
• Bigger screenshots (for example this) aren't visible on smaller screens. 16px fonts become 3px fonts. Instead: screenshot it on a different screen size, take just a partial screenshot or draw the simplified version of the UI where there is no text just boxes.
• After every section that has features with images, there is a small feature section with icons. There seems to be a line between these two sections while they are related to each other. Why? This confused me first. See this screenshot.
• The main features are nicely explained on the site.
• There are multiple screen layouts vertically next to each other, however there is now scrollbar so I can't view them. You could also put an animation on this too, so when I scroll, the screen layouts scroll too.
• I clicked on "Preview Widget" button, but nothing happened.
• Some images are too big on smaller screens.
• I miss the icons as visualization at section "Integrates with your workflow" when I view the site from a smaller screen.
• The animations are too much. When I scroll down it looks cool, but it's annoying when I have to wait for the same animations when I scroll back up.
• The hamburger menu icon's animation on smaller screens looks weird. It works well when I open the navbar, but it looks funny when I close it.
• The image on the right in the signup page makes no sense. Why did you use that image?

Technical

• On some screen sizes the page is vertically scrollable.
• Looked at the demo page. I set the theme to dark. When I refresh the site the colors flash. First the app is white then it turns darker.

Overall I like the app you are making. I looked at your product hunt page and saw that this had its first version in 2017. Glad you are back on it, gave you an up vote. If you want me to revisit your site after you made some changes feel free to contact me, I happily review sites.