What if . . .
you intend to submit a mail-in ballot to vote in the November 2022 national elections, and simultaneously wish to protest the previous presidential election results of 2020. Consider this:
Make a digital copy of your completed absentee ballot and mailing envelopes to capture all marks on both sides of the envelopes either by digital photo or digital scanning. Preserve this artifact prior to submission. Then submit the absentee ballot via certified or registered mail using the USPS system if you are financially able. Address the USPS forms directly to the submission envelope's addressee. Once delivered, you will receive an acknowledging receipt of your ballot.
If submitting the ballot at a drop-off center, still complete the creation of an artifact for your retention, and then submit.
Why?
To begin a de facto “chain of custody” implying a future action and indicating a broader, voter skepticism about ballot manipulation.
You get the drift.