I made strawbwrry with this tutorial. But now I would use this strawberries in other project. But when adding Modifiers shape is going wrong and seeds are disappearing. I also tried to Convert this object to mesh, but it goes strange too.
I also tried add “realize instances” node before group output in Geometry nodes, but it took all the DDR4 RAM (48Gb) and after that (about 3 minutes freezing Blender) still mesh was not like with the modifiers.
I can already see 2 things from your image.
1-If you apply a hidden modifier, it will be counted as if it was visible. You need to delete it before applying.
2-You have a particle system. You need to use the “convert to mesh” button on the particle modifier (the button on the modifier itself, not the general convert to mesh), then delete the particle system. If your particles are not rendered as meshes, ignore this, because you won’t be able to apply the particle system.
Also, I see you seem to have your geometry nodes applied to multiple strawberries. What this means is that when you add a realize instances node, it will affect every strawberry at once. Still, you will need to do it if you want to keep the object that’s being duplicated.
What is the triangle count of each seed and does it need to be as high as it is? I see you already have 2 million triangles in the current state, so if the seeds have lots of polygons, it’s going to be a major problem once the instances are realized.
Maybe you would need to hide the strawberries and have only a single one visible at a time when applying the modifiers.
Thanks a lot for help!
GeometryNodes and Displace are still the problem. I hide everything, but one strawberry, but still adding “Realize Instances” take all memory and now after 20 seconds Blender crash.
Seed:
If you look at the statistics at the bottom of your screen, you will see that just these 2 seeds alone have half a million triangles. What this means is that once you make the instances into real objects, you are probably going right past a hundred million triangles. Do the seeds really need that much detail, will they ever be seen close enough that it matters? One thing I am almost certain of is that they don’t need 3 levels of subdivision. For such a small object, they would surely get away with just one level or even no subdivision at all.
Ok! Thanks, I don’t understand how there can be so many, because in edit mode I see only this:
Now problem is solved! I selected seeds and clicked Object/Apply/Make Instances real, after that I applied Geometry nodes (deleting first one like You said), and it worked now! Still trying to get this hair-mesh shaders to white, but I think to figure it out somehow.
Thanks a lot for Your help etn249. Be blessed! 
In your image, there must have been some other objects that were not in the camera’s view. But still, 160 triangles will turn to over 10 000 with 3 levels of subdivision. Each level multiplies by 4.
Thanks! Yes there is in total 4 strawberries in the scene. I added decimate modifier for seed before adding modifiers and get Face Count to 204 (it was 1280).
Now trying this for hairs, but it is tricky too.
With this video I got hair particles to mesh and shaders to affect those. Now this object is one mesh!
