Checkout the following links:
https://docs.google.com/spreadsheets/d/1Si3PMUJGR9KrpE5lngSk...
Chess.com is for profit, so they have to maintain some profit margin and lock features behind paywalls to incentivize people to pay. The free experience is worse than Lichess.
P.S.: Some googling suggests that it played "backups" just fine.
My parents wouldn't let me buy M-rated games, so the easiest way for me to play MGS was on my Dreamcast with a copy of Bleemcast that I found used at Gamestop for four dollars with a pirated copy of the game.
It seems they got the business model right this time.
I've been curious whether Switch libraries will follow you to whatever the next Nintendo console is. They haven't done that in the past, but online purchases might be so common now that they can no longer get away with not doing it.
Like still being able to watch that old VHS movie on BluRay HD, or listening to Swing records from 1920 in 2021.
I recently paid five dollars for redream Dreamcast emulator. Totally worth it. There's a free version that doesn't run hi Res and that's fine.
They even paid the developer several thousand dollars so that they would improve the debugger function.
This was all unofficial, of course - Nintendo had no idea and would not have been happy if they found out.
https://play.google.com/store/apps/details?id=com.dsemu.dras...
Over one million downloads, price £4.99
;)
My point still stands though for emulators on PC where I believe software piracy remains popular.