Logseq DB Unofficial FAQ

So Logseq MD will continue to be supported on desktop and mobile and I can always decide whether I use DB or MD for new graphs, correct?

What features will not be available or not work as well when I choose an MD based graph? (e.g., sync and RTC)

What features will not be available or not work as well when I choose a DB based graph? (e.g., self hosting with sync)