You actually never want to freeze seeds.
To freeze seeds requires a looong process of removing moisture from the seed, and then a slow process of warming and rehydrating.
The best process is one of those lil mini fridges that students use in college dorms.
They freeze easily so I like to set the tempt to where it stabilizes around mid40’s to low 50’s F.
Also, people who dont refrigerate their seeds can have a tough time sprouting seeds as seeds often need a “winter” to trigger coming out of dormancy. This is especially true with fresh new seeds.
It makes sense, too. If seeds fall off a plant in fall and sprout, they will all die over the winter. So, its ideal that the seeds fall off the plant in the Fall, lay dormant through winter, then sprout when temps increase.
Fluctuating the temps really helps with old seeds.