Xtrackers MSCI World Financials ETF

Hello dear Gequin Community,

I am currently working on restructuring my portfolio. Historically, I currently have a few funds and a number of individual shares.

I would like to switch the funds to ETFs and continue to save in them.

Classically, I would now select the following ETFs:

$VWCE (+0.85%) / $VHYL (+0.84%) and $VFEG (+0.05%)

Now my little thought experiment: Why should I limit myself to three ETFS when I could spread the whole thing much more widely? I have also thought about something like this (with smaller sums, of course):

$WELS (+0.77%)

$ECOG (+0.97%)

$EXH5 (+1.66%)

$CHIP (+2.03%)

$DFEN (+2.23%)

$XDWF (+1.47%)

$RBOT (+2.66%)

$XAIX (+2.01%)

$IH2O (+0.8%)

$WELW (+0.65%)

Of course I have a few duplications here, but I am much more differentiated.

Does this approach make sense in your eyes or is it a modest idea?