I've been using an Fdroid browser; Lightning on my Android tablet. If some kind soul could port it, many would be grateful.
It's on Github. I'm brand new (yesterday) to UB Ports or I'd give it a stab myself.

Another F-Droid app: K-9 Mail is open source, light and fully featured.

@Bramble The tablet I'm typing on has far lower specs than the Pinetab. There are only a few apps I use on on the spyware named Android.

@halucigenia I have the same issues with headphones, bluetooth and the microphone on my Pinetab. Morph takes some getting used to and benefits from uAdblock. Morph has hidden reload and close buttons in the adress bar.

@smoky My Alcatel Go Flip 3 connects without any fuss.

@keneda Thanks, but I finally found it under the cover of what I thought was the m.2 slot. I've got my bluetooth ear buds working using an ancient D-Link dongle which oddly works rather than the Plugable one that's supposedly the best for Linux .

I have a Pinetab early adopter phablet. From top to bottom I have a headphone port, HDMI, USB and what looks like a covered M.2 slot.
If there is an SD port, it's well hidden.
Would someone please show me how to find it?

I have a 'feature phone' with Kaios Linux as the OS. It's the rebirth of Firefox OS and is meant for low spec devices. As the vast majority of apps are in HTML5, it seems to a good opportunity to cooperate and share.

Somewhere along the way, the File Manager, Terminal stopped working. Also, Language and Text, Battery and Security & Privacy are unavailable to edit. I've reset: one time three consecutive times and no change was observed

@Keneda Installing Fench as an addional language changes my screen keyborard when I press the globe.

@Yuri I have five ports on my Pinetab; headphone, power, usb, usb 2 Ahost and micro usb OTG. I can't see an sd slot.

@lduboeuf After searching, it appears that someone associated with VLC is developing a version for ARM. It would be a welcome addition.

I tried converting an MP4 video into OGG, but it made no difference. Media player needs serious work.

@halucigenia I have the same issues with headphones, bluetooth and the microphone on my Pinetab. Morph takes some getting used to and benefits from uAdblock. Morph has hidden reload and close buttons in the adress bar.