ntfy and FreshRSS for me. Audiobookshelf recently joined and I am using it daily. (Inofficial probably the Arr stack though ๐ )
They do allow to reply, simplelogin also has no limitation on reply count.
If it is just for email forwarding maybe a service like https://anonaddy.com/ or https://simplelogin.io would work. Catch-all is even included in the anonaddy free plan as that is something you actually do not want to have enabled ๐ For your custom domain you have to have the lite plan at least though.
Pretty sure the Steam Deck plays a sound for notifications and achievments, I do not remember for desktop either though ๐คทโโ๏ธ
As with Protonmail it would be nice if they could focus a little bit more on their core product. Importing emails is still not possible with them. As an email provider. With an open issue about it from 2018 ๐คทโโ๏ธ.
They have started implementing read-only folders for Immich with the latest release. And it does actually work pretty well.
However it currently is a very manual process via the command line (and not very well documented, especially for docker) and it has limited features as it does not automatically sync new images and does not remove deleted images from its database yet.
Also I would not give too much about the displayed battery health, it can jump all over the place. My car also thinks that my battery is pretty much dead and disabled auto-start/stop. The battery is as fine as it can be, the charging circuit just does not keep track of the charge very well. As long as you don't feel your runtime changing significantly I would not worry much about it.
ProtonDB which lists Steam Deck as a separate category. Usually you will find users describing their settings if modification is needed.
ShareDeck specifically for Steam Deck settings.
SteamDeckHQ which has Steam Deck settings as well.
Show Great on Deck as a Browser extension (Firefox/Chrome) which displays ProtonDB and SteamDeckHQ on the Steam Store and links directly to the correct subpages.
The Mass Effect series is still my favorite, you can choose your protagonist to be female and the game will adapt accordingly. Or Dragon Age if you are more into fantasy.
It uses user submitted titles and thumbnails if they are available. If not, it uses a random frame from the video as a thumbnail and applies some rules to the title (like no caps etc.).
For example a LTT video from yesterday:
Original title: 'Only YOU can fix GPU pricing... Here's how!'
Replaced title: 'How to find a good deal on a used GPU'
And about the thumbnails, just take a look on YouTube. In general I mean ๐
Never noticed anything in the last couple of weeks. I had one podcast missing new episodes because the schedule was turned off. But I might not have had it turned on in the first place.