Which Device to go for? Save by buying older model or spend on newer model

Hi, I'm on the fence between a couple of devices for my studies. My main purposes for using these devices are for note-taking during and after lectures, watching videos (Youtube, Lecture Videos, etc), 2nd screen for multi-tasking (using alongside my laptop most of the time)

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I'm on the fence between the following devices:

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Samsung Tab S7+

Samsung Tab S7 FE

Samsung Tab S8+

Samsung Tab S9 FE+

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All of them have the same screen size (12.4") but differ in terms of the screen type, OS system (Security Patch Update), chipset, RAM & storage;

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Tab S7+:

Super AMOLED, 120Hz, HDR10+
Qualcomm SM8250 Snapdragon 865 5G+
Ram - 6Gb / 8Gb
Storage - 128Gb / 256Gb & 512Gb
Android 11, up to Android 13, One UI 5.1

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Tab S7 FE:

TFT LCD
Qualcomm SM7225 Snapdragon 750G 5G
Ram - 4Gb / 6Gb / 8GB
Storage - 64Gb / 128Gb / 256Gb
Android 11, up to Android 13, One UI 5.1

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Tab S8+:

Super AMOLED, 120Hz, HDR10+

Qualcomm SM8450 Snapdragon 8 Gen 1

Ram - 8Gb / 12Gb / 16Gb

Storage - 128Gb & 256Gb / 256Gb / 512Gb

Android 12, up to Android 14, One UI 6

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Tab S9 FE+:
IPS LCD, 90Hz
Exynos 1380
Ram - 8Gb / 12Gb
Storage - 128Gb / 256Gb
Android 13, up to Android 14, One UI 6

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Should I get the cheaper Tab S7+ or Tab S7 FE even though the OS system and security patch update end this Summer of 2024

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Or spend more and get the Tab S8+ or Tab S9 FE+ for the OS system and security patch update which will last till 2027?

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Which model would you choose? Thank you in advance for your feedback n suggestions. 🙇🏻‍♂️🙇🏻‍♂️😊😊