1 - /view-post/qxv05d

while here on UNA they look like this:

/p/the-best-community-software-what-to-look-for

2 - /view-post/ and /p/, why is there that difference in the URL?

1 - when script can't generate URI from title, then random string is used

2 - it's additional rewrite rules, which can be added in sys_seo_uri_rewrites table, on una.io this table looks like this:

there is no tool for adding records into this table in Studio yet, we're still testing this functionality, and will add it later, for now you can do it directly in the database if you want to test this functionality