Not necessarily for Smartphones and Tablets. There is an exception:

manufacturers, importers or authorised representatives may provide the battery or batteries referred to in point (i)(a) only to professional repairers if manufacturers, importers or authorised representatives ensure that the following requirements are met:

(a) after 500 full charge cycles the battery has, in a fully charged state, a remaining capacity of at least 83 % of the rated capacity;

(b) the battery endurance in cycles achieves a minimum of 1 000 full charge cycles and after 1 000 full charge cycles the battery has, in a fully charged state, a remaining capacity of at least 80 % of the rated capacity;

See: https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX%3A32023R1670

So If this requirements are met it does not need to be easily replacable by the End-User. Don’t know If they can achieve that.

Are there any reviews available for the Murena?

Thema advertising it as a Linux Phone is misleading imho. They should focus on advertising it as an alternative to Android/iOS with optional Android App support.

But from a Hardware point of view you are right. It is not a flagship device. In regards to repairability at least the battery can be replaced.

For everyone interested here is the official product page: https://commerce.jolla.com/products/jolla-phone-october-2026

the 8GB/128GB version costs 649€

I would also propose going with Tailscale instead If a VPN + DynDNS solution. Imho it is a lot easier to Setup compared to VPN + DynDNS If you are a beginner and just starting out.

If at some point you need more and then is available in the free Tier of Tailscale and you do not want to pay for it (and you have built up some knowledge!) you can switch to something like Headscale or Netbird.