RAM Size - Swapping?

[jojumaxx]

Hello again,

some time ago I reported about
the laggy performance of my Volla Phone 22.
Today I compared the output of free -h of my Volla Phone 22 and a Volla Phone X which both are supposed to have 4GB of RAM.
Both are on 24.04-1.0 stable.

Volla Phone 22 output:

          total     used       free     shared    buff/cache   available
Mem:      3,3Gi     2,4Gi      254Mi    54Mi      707Mi        941Mi
Swap:     1,8Gi     103Mi      1,7Gi

Volla Phone X output:

          total     used       free      shared   buff/cache    available
Mem:      3,7Gi     2,5Gi      158Mi     51Mi     1,1Gi         1,2Gi
Swap:     0B        0B         0B

Both Phones are running the same apps (Terminal, Launcher Modular and Morph (same number of tabs)).

I am ok with 3,7 GB of RAM of the Volla Phone X, I suppose that's within tolerable range. But why is my Volla Phone 22 missing 700MB of RAM?
Is that why it's swapping? And is that why it performs laggy?

Maybe other Volla Phone 22 owners could verify their RAM for comparison here?