With Proton you can have the domain with them. So there is no hassle with running the infra for mail server (mainly after all the reputation is handled by Proton so maybe less Spam folder delivery with them compared to selfhosting).
Same - family does have one big ass bookshelf (well rather a big pile of books not anyhow organized). So I'm counting on them to store anything of emotional value. Myself have 0 as of now and only few are with me because they are for meetups (someone can borrow a book and return it on next meetup - mini BTC library fitting backpack). Sold many for secondhand or left them in the community libraries scattered around the town.
Interesting, maybe OS dependent. Have around me mainly Ubuntu/Zorin (moreover Ubuntu) - Chromium and Ungoogled chromium. On multiple devices this is still happening - today YouTube vanished, that's why I remembered.
It's not every month; in total several times per year for sure.