Know a workaround to get Link2SD on Marshmallow?

what about asking on xda? go to there thread for their rom there and ask. xda is my place for all things root.

 

I don't think that the apps have disappeared.
What happens is that the icon on your homescreen vanishes.

This is just one of multiple problems that happens when apps are on the SD card.

You best bet is to just get a device with more memory.

The idea that the device is any faster with apps on the SD card is a false premise- unless you have so many apps that you are overtaxing the available internal memory.

And if you are only using Anki, is that really possible?

The best bet is to use the internal memory for apps, and the SD card for media files.
The internal memory is designed for constant read/write cycles, whereas the SD card is not, and its lifespan will reflect this- greatly.

 

I wonder whether the problem is that these more recent ROMs don't support the scripting that Link2SD uses to set up the links on a restart? That would result in everything working fine until a restart, so if the apps are actually broken after a reboot, as opposed to just icons missing, that could explain it. Does it rely on init.d scripts, and do these ROMs support that? If the answers are "yes" and "no" respectively then the question is whether you can add init.d support to them.

If on the other hand the apps are still installed properly but just not on the desktop, as suggested above, then it's probably a timing thing (desktop set up before the SD card and links loaded). I don't have any solution to that.

I'm afraid I agree that unless you just don't have space for the apps otherwise it's best to avoid moving them to SD.

 

I started with Android 5.1, which as far as I know was the last versíon to include a built in method to move apps to the SD card.

It was still basically poop.

My 8.1.0 is a memory strapped device, and it offers for the SD card to be formatted as internal memory.

After installing a card and formatting it as internal, it was great...

for about three months.

The constant read/write cycles quickly wore out the card, the card died, and took everything on it to the grave.

Unfortunately, this is how we learn.

I have since learned to 'Android within my means', and have not had such a catastrophe since.

 

A quick web search reveals that init.d support was dropped in CM12, so if these apps are using that (and I know Link2SD used to) that could explain it.

There are various recipes out there for enabling/adding init script support, but I've no experience with them (I've not used init scripts with anything later than Android 5) so can't recommend a particular approach.