Would you consider samsung wallet big tech?

They are much smaller than google (user base wise)

I am not entirely sure it can be installed on non Samsung phones and non stock roms

How has a self hosted imap been treating you?

I heard some pretty brutal stories, like big email providers just refusing emails from self hosted servers

I think this is because YouTube pushed so much its shorts (tiktok knockoff) but they're not as profitable. My guesstimate is that at least 70% of traffic is in shorts now so longer content is rarely played along with longer ads