In 2020, were you a tax resident? Did you have any income?
This is a bigger question, whether you ever failed to file taxes when you should have.
One option is to simply apply in January 2026, this way you'd have to provide transcripts for 2021, 2022, 2023 and 2024. Possibly 2025 if you file before the interview.
But it doesn't solve the question whether you ever failed to file taxes.