This is totally normal for Windows 11. Microsoft pushes updates pretty frequently - we're talking security patches, driver updates, and cumulative updates that happen all the time. You'll get them weekly or even more often depending on what needs fixing. It's just how the system works now, especially compared to older Windows versions.
The annoying part is that Windows will keep reminding you until you actually install them. If you're seeing notifications pop up constantly, it usually means you're either dismissing the updates or restarting later instead of right away. Once you actually go through with the installation and let it fully restart, those notifications should quiet down for a bit until the next batch rolls out.
If it feels excessive or the updates keep failing to install properly, you could check Settings > System > Windows Update to see what's actually pending and if there's an error message. But honestly, a notification every week or so is just standard. You're not dealing with a virus or anything broken - it's just Microsoft being aggressive about keeping your system patched up.