[vetinari]

1) They will anyway, see below: https://news.ycombinator.com/item?id=39728575

2) Only if they use server-side decorations only. In Wayland, client-side is mandatory and server-side optional. So if they do not have decorations, they are broken.

3) You client should use one of the big frameworks. On other operating systems, they are mandatory anyway. Only Linux allows your client connecting to compositor directly. Use that power responsibly. Frameworks bring lot of stuff implemented for you. If you reject that, it is up to you to implement that yourself.

4) You can't even with server-side decorations either.

Yes, with tiling, you get them. However, many apps have toolbar there, so you need it anyway.