I'm an Apple guy, though my main laptop is a Windows 10 Surface Pro, since many Microsoft Office applications are pretty weak in their Apple versions.
When I travel, I take my iPhone and iPad Pro. The iPad is light and easy to store, and is just as good as a laptop at half the weight. However, I don't use iCloud storage for more than a few items. The reason is that after the free 5GB iCloud storage, you have to pay an additional monthly fee.
Over the years, I've found that OneDrive (unlimited storage with an annual Office 365 subscription and "shareable" with four additional users) and Google Drive (free with I think 15 GB of storage) are great alternatives to iCloud, and both are easily installed on an iPhone or iPad. Further, Google Photos has unlimited photo storage.
Of these two, the Google products are probably the easiest and most user-friendly to set up and operate, particularly if you aren't exactly a tech geek. I also like the fact that cloud storage eliminates the possibility of lost files, photos, etc., if your device dies.
As for the iPad, yes, they're expensive. But the quality and longevity of support are superior to any Android based device I've ever had, and I'm sold on them. (Just my experience. Others are devoted to Android. Vive la difference!)
In any case, a somewhat current phone, tablet, and one of the cloud services should serve you well when on the road. Good luck.