It needs more incentives. Sync performance on small files is an issue for a very long time and if you promote such a solution, people are perhaps more willing to test this. A long time ago, I tested a few this on a raspberry system myself to see the influence of redis and the database caches (Upload performance OC 8.2.1 (50 mysql queries per file) · Issue #20967 · owncloud/core · GitHub). But it takes you easily a day and with all the follow up more time.
But this time, unless you are excited about the backup app (🛠 Nextcloud 23 RC 1 is here - testing time!), I wouldn’t get the idea of testing the sync process.