From a productivity POV, Jerboa is the most developed & is built with one of the most secure languages (Kotlin) but from a security & privacy perspective browser (Eg. Mull-Fenix) is best suited, the constant login may be annoying but as long as you use a password manager it shouldn’t be a hassle.
Nevertheless recommend downloading the update from the GitHub repository & use an RSS feed to constantly check for any development.
F-Droid has the tendency to take time to update the apps.
Regarding the RSS feed you need to generate one since GitHub doesn’t make it easy with the type of link they used, Feedless (FOSS) will help with that.