Been using a degoogled LineageOS phone with all apps being exclusively FLOSS. My favourite free alternatives to proprietary apps and services must be Lemmy (Jerboa) for Reddit, ArcaneChat and Matrix (Extera) for Telegram, Fluxer for Discord.
Which ones are your favourite?
I like Unexpected Keyboard, it’s really intuitive once you get the hang of the swipe motions. I used to use Anysoft Keyboard but it became unusable with one of the more recent updates so I had to look for a new keyboard and found this one to my liking.