Exclude posts from archive

I’m using Arras theme, and I’m trying to exclude some of the posts from showing on my archive pages. This theme has a particular setting on the front page, and while I do want to show these posts on the front page, I want to exclude them from the archive. I’ve already tried all the category excluder plugins I could find and I haven’t been able to make it work. What seems to make it tricky, is that this theme seems to use the archive to show on the front page. Can somebody please help me with this? My site url is https://divabenefits.com, and the archive pages are https://divabenefits.com/page/2/ and all the subsequent numbers.