My work laptop won’t let me install it. My old laptop is 32bit so it won’t install there.
Well then you either need a new job where they don't restrict you from installing software on your work-issued computer, or a new laptop of your own with a modern O.S. 64 bit computers/operating systems have been standard for over ten years now!
Can I use the browser version and still export the files?
Lol, no. The browser version is not a fully functional version of the program. Its a demo so you can get a feel for how the program works, and decide if you want to buy it.
I also can’t figure out how to add images in the online version
Because you can't add images to the browser demo. Again, it's not a full version of the software, it's to let people get a feel for how the program works.