The PlayStation 5 can only have up to 8TB of external storage, so you can use the 8TB WD_BLACK to store games you aren't playing so you don't need to redownload them in the future.
Seagate's external HDD has a ton of space and, when formatted to write data from a Mac, can be partitioned for Time Machine backups and typical file storage at the same time. Need to save money but also need to make sure your data is safe? WD's Ultra Blue will have all the space you need, is portable, and will not break down after a year. With two WD Red drives, you can back up all your data twice over to prevent loss, or use them separately for double the storage space.
This external hard drive can really do it all, except being portable.