There's LineageOS and GrapheneOS - the latter only really supports the Pixel phones, so you'll be wanting this list:
LineageOS Supported Devices
Samsung tablets from about 2020 seem to be well supported - I've seen lots of the Tab A7/6/5 on eBay lately (UK) as I've been looking to do the same thing.
You can also put vim inside VSCode via extensions!
There's LineageOS and GrapheneOS - the latter only really supports the Pixel phones, so you'll be wanting this list:
LineageOS Supported Devices
Samsung tablets from about 2020 seem to be well supported - I've seen lots of the Tab A7/6/5 on eBay lately (UK) as I've been looking to do the same thing.