When will online-only files work on Linux?

I am a paid subscriber and using dropbox on mac and Linux simultaneously. Today, I found this new thread regarding the age-old issue of not having smart sync capability for Linux systems.
I was subscribed to the old thread created by someone in 2018.
Developers must intervene and provide this feature, at least to the paid subscription. It will be good enough if we can find this feature for ext4, xfs or btrfs file systems only. This will cover most installations of Linux and will be very helpful in managing our storage resources.

Please look into this issue.

What mechP said.  It's been four years, guys!

This thread is marked "Solved" but it's not -

SmartSync is NOT available on Linux, despite me being a paying customer, and hundreds of posts here over years asking when it will be available.

The thread is NOT solved.

When will SmartSync be available?  Is it in the works?

How about a partial refund for features not available?

I also need smart sync for linux! Can you please implement it?

Im also a paying customer for at least 5 years.. When we will receive the same treatment as other platforms? You just implemented it for Mac!!

+1 Just signed up as a paying customer mainly to use SmartSync and then found out it's not available for Linux. Please add. Will likely cancel my paid subscription since I use Linux for most things.

If someone would create an alternate Dropbox client for Linux that provides Smart Sync like behaviour, would you be interested? Please like / +1 this post if you would be willing to back such a project on Kickstarter with at least $99. (Would be released as open source both to make sure it can be shipped by Linux distros and to establish hopefully long-term community maintenance. Kickstarter campaign would not start before there's a working prototype, so total failure of delivery would be unlikely). Asking for a friend.

Like everyone else has said !!  What is telling to me is what is said in the Dropbox authored Article on how to use Smart Sync.  At the top is a grey box that leads with this, "This feature is only available to users on Dropbox Plus, Family, Professional, or Business plans."  So clearly Dropbox understands that is important information to share.  But equaly important is highlighting which platforms support Smart Sync. Why the different treatment? Maybe because for the plan type, they hope it will get more paid user and for the OS it might cost them customers?  Important information is importnt for all, to "bury" something important is not honest business.

Making a decision to not provide this feature on linux is one thing.  But to treat linux users with such disrespect is another.

Adding one more voice for this feature for Linux. Sitting here watching my HD run out of space. 🙄