Question about the highest usable macOS version on a Late 2011 MBP (OCLP, 4GB RAM)

I’m using a MacBook Pro Late 2011 with an i7, 4GB RAM and a 500GB SSD, currently running macOS Monterey through OpenCore Legacy Patcher. Everything works surprisingly well for such an old device – browsing is smooth and even FL Studio runs without issues. The only problem I’m starting to face is that some App Store apps no longer support Monterey, so I’m thinking about upgrading. macOS itself is offering me an upgrade all the way to Tahoe, which is obviously unrealistic for this hardware, so my main question is what the highest macOS version is that I can still run properly with my current setup. I’d also like to know from which macOS version onward I would really need more RAM, and at what point newer systems become unusable on this machine regardless of how much RAM I upgrade to. Another important point is whether I can downgrade again without losing data — for example, if I upgrade to Sequoia and it turns out to run poorly, can I simply go back to Monterey without wiping the whole system? And finally, what is the correct upgrade/downgrade workflow with OCLP: can I freely move between versions without data loss, or do I need to recreate a USB installer every time? Any advice from people with more experience would really help.

submitted by /u/ostseesound
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