Verdict: No
No. Windows Calendar is part of Windows and has no Linux version, and Microsoft stopped supporting it on 31 December 2024, so it is on its way out on Windows too.
Microsoft has confirmed that support for Windows Mail, Calendar and People ended on 31 December 2024 and that the new Outlook takes their place. So this is not really a Linux question. The app is finished either way.
On Linux the replacement is built in. Ubuntu and Fedora come with a calendar app in the menu that connects to the same accounts you already use, including Google, Outlook.com and Microsoft 365, and it puts your next appointment in the top bar. On KDE systems the same job is done inside Kontact.
Whether anything needs rescuing depends on where the appointments actually lived. If your calendar came from a Google or Outlook.com account, everything is on the server and reappears as soon as you sign in on Linux. If you created appointments locally on the PC, they exist only there. Microsoft says local calendar data from these apps remains exportable, so export it to an .ics file while Windows still runs, then import that file on the other side.
Do the export before you wipe the disk. There is no way to read the old app data afterwards.
The fullest replacement. Calendar, mail, contacts and tasks in one window, and it feeds the reminders you see on the desktop.
Your files: Imports .ics calendar files and connects to Google, Outlook.com and Microsoft 365 accounts.
Has a calendar built in next to your mail. A good choice if you also used the Windows Mail app.
Your files: Imports .ics files and syncs online calendars.
Tasks and reminders rather than a month grid. Worth it only if what you used Calendar for was chasing things to do.
Your files: Does not import .ics appointments.
One stubborn program doesn't have to decide the whole question. You can keep Windows on the same PC and restart into it only when you need Windows Calendar. Everything else you do can move.
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