@jcrabapple I like these native apps:

• Clipious (YouTube client)
• FluffyChat (Matrix client)
• InnerTune (YouTube music client)
• Moshidon (Mastodon client)
• OpenCalculator
• HeliBoard (Keyboard)
• Koler (Phone app)
• Connect You (contacts + SMS app)
• PhotonCamera
• Neo Store (F-Droid client)
• Obtainium
• Material Files

All FOSS.