Some commercial alternatives to MS Office:

https://www.wordperfect.com/en/

https://www.softmaker.com/en/

https://www.infomaniak.com/en/ksuite

https://www.group-office.com/

https://www.icewarp.com/

https://www.bitrix24.com/

https://fengoffice.com/

https://www.hancomdocs.com/en/

https://www.larksuite.com/en_sg/

https://www.polarisoffice.com/en/