@Infinite_aviation1 is basically spot on here, both of these devices are a significant downgrade over your S10e.
Depending on the version, it either shipped with the Snapdragon 855 or the Eynos 9820. The 865 is not a significant enough boost in performance that I would recommend getting it, which leads onto the Snapdragon 888.
Devices using this include (but are not limited to) the Samsung Galaxy S21, Xperia 1 III/ 5 III, ROG phone 5 and OnePlus 9. Now, chances are, none of these really are going to make your experience dramatically better unless you plan to also use them as a phone, rather than just for Infinite Flight.
If you’re looking exclusively for the purpose of IF, I’d recommend getting a tablet. Something like the Galaxy Tab S7 or a recent generation iPad will give a nice boost in performance whilst also giving you a nice large screen to work with.