1. comece removendo todos os repositórios PPA do mongodb, então:
2. sudo apt-get purge mongodb-org*
3. sudo apt remove mongodb
4. sudo apt purge mongodb
5. sudo apt autoremove
6. sudo rm -r /var/log/mongodb
7. sudo rm -r /var/lib/mongodb
8. sudo apt-get install gnupg
9. wget -qO - https://www.mongodb.org/ static/pgp/server-4.4.asc | sudo apt-key add -
10. echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/ apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list
11. sudo apt-get update
12. sudo apt-get upgrade
13. sudo apt update
14. sudo apt upgrade
15. sudo apt-get install -y mongodb-org
16. sudo apt-get install libc6
17. sudo service mongod start
18. status do mongod do serviço sudo

Isso me ajudou com o problema