As far as I know there are four options available:
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continue using the old unsupported MacOS,
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downloading a newer MacOS through Open Core Legacy Patcher,
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downloading Linux,
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and working on the MacBook through a Virtual Machine.
However…
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I have read that using an old MacOS is unsafe (Is it really if you just browse reputable sites through FireFox and only download items from reputable sources?),
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I don’t know if OCLP is compatible with real software (apps from AppStore or from a recognized 3rd party like AutoCAD),
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there are issues with Linux lacking drivers for newer Macs and non existent power management,
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and what is the performance like working on a Mac through a VM?
The hardware still works and the battery health is Normal, so I don’t feel like there’s a reason to upgrade.
How long is macOS Ventura Support? - Apple Community
Mac OS Ventura still supported/will receive security updates in the future?
Who else is still running Ventura?
With the support of MacOS Ventura likely ending this year, what can be done with an old MacBook Pro 2017?
I haven't updated because I am a casual user but I am starting to notice limitations when using simple AI tools, and some I can't even download on this old OS. I don't know anything about Tahoe but I will probably stay on Ventura until I cannot any longer.