Encryption on backups is a massive foot-gun. Frankly a padlock works better for most normal people.
I'm similar although I like to buy clearance external HDDs, fill them up, and put them somewhere safe with some desiccant packets. Get a new one every 10~ years, copy the old to the new, then use all the additional storage for new content. Leave the old in the box with the new (even if it is less reliable, it is just "bonus backup"). Just make sure you label which year is which.
A shoebox could hold a lifetime's worth of HDDs with this strategy, and each new one is around $50~ with every increasing capacity.
I'm similar although I like to buy clearance external HDDs, fill them up, and put them somewhere safe with some desiccant packets. Get a new one every 10~ years, copy the old to the new, then use all the additional storage for new content. Leave the old in the box with the new (even if it is less reliable, it is just "bonus backup"). Just make sure you label which year is which.
A shoebox could hold a lifetime's worth of HDDs with this strategy, and each new one is around $50~ with every increasing capacity.