I can provide information based on common user experiences up until my last knowledge update in 2023.
Instant Pots are versatile multicookers with various features, and the usage of certain features can vary depending on individual preferences and cooking habits. Here are some features that some users might rarely or never use:
Yogurt Making: While some Instant Pot models have a yogurt-making function, not all users may be interested in making their yogurt regularly.
Cake Making: Instant Pots can also be used for baking cakes, but many users might prefer to use traditional ovens for their baking needs.
Sterilize Function: The sterilize function is primarily used for canning and sterilizing baby bottles or utensils, which might not be relevant for all users.
Custom Programs: Instant Pots often come with pre-set programs for specific dishes. Some users may prefer manual settings instead of relying on these pre-set programs.
Sous Vide: Some Instant Pot models have a sous vide function, but those who are serious about sous vide cooking might opt for more specialized equipment.
Low-temperature Cooking: Though Instant Pots can do low-temperature cooking for certain recipes, some users may not explore this feature as much.
Pressure Canning: While pressure canning is possible with some Instant Pot models, not all users may engage in canning regularly.
Remember, the usefulness of these features depends on individual preferences and cooking styles. Some people may find these features incredibly valuable, while others might rarely use them. It all boils down to what you enjoy cooking and how you like to use your Instant Pot.