It depends on what you are writing.
Well, may change to we'll depending on the sentence. a few examples given below...

- "I feel unwell and need to rest." (Autocorrect would not replace "well" with "we'll" because it is being used to describe a physical condition.)
- "The water in the well is crystal clear." (Autocorrect would not replace "well" with "we'll" because it is referring to a water source.)
- "She sings so well, it always amazes me." (Autocorrect would not replace "well" with "we'll" because it is describing someone's singing ability.)

- "We'll meet at the restaurant for dinner." (Autocorrect would replace "well" with "we'll" to indicate a future arrangement.)
- "I hope we'll get good weather for our trip." (Autocorrect would replace "well" with "we'll" to express a future possibility or expectation.)
- "We'll need to discuss the details before making a decision." (Autocorrect would replace "well" with "we'll" to indicate a collective action or agreement.)

- "Well, we'll need to leave early if we want to avoid traffic." (Autocorrect would not replace "well" or "we'll" as both words are used correctly in this sentence.)
- "I hope you're doing well. We'll be meeting at the park in an hour." (Autocorrect would not replace "well" or "we'll" as both words are used correctly in this sentence.)
- "I'm not feeling well, so we'll have to cancel our plans for tonight." (Autocorrect would not replace "well" or "we'll" as both words are used correctly in this sentence.)