I am a long-time Xara user. It is a Windows only program (Although there is a Linux version that hasn't been updated in ages.) and it is super simple to use.
One of the things that I like about Xara is you can just select an object on a page, like a 720 x 90 ad banner on say a 1200 x 800 page and then export it as a png file and it only exports the banner, not the entire page.
I have found that with Abobe Illustrator and now Affinity, the only way that you can export an item is to create a file that is the exact side of the object you want to export. Otherwise, when you export, it exports everything on the page.
Maybe I am doing something wrong, but is is possible for me to just a select object to export or do I need to create a new file that is the same size as the item I want to export?