Welcome! It always helps if you provide information on the model of your Mac, the amount of memory and storage.
The latest version of macOS Monterey is 12.7.3 (21H1006). With every new installation of macOS, Safari is updated/replaced as well, so it might very well fix your problem with Safari. If I knew the make of your Mac, I could inform you of the latest version of macOS that you can install on it.
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