Why no ultrafit strap for Epix?

Do you mean the Velcro strap from the Enduro?

Never read the term „ultrafit“. 

If so, I got one from Amazon. But I would recommend buying one without the quickfit mechanisms, that one felt cheap. I now have one wich is looped through and works superb. 

Tactical Nylon in 22mm as well.  Take my money.

I have these YOOSIDE 22mm Loop Nylon Armband für Fenix 6/Fenix 5/Fenix 7/ EPIX 2, Ultraleichtes Schnell Trocknen Schleife Waschbar Uhrenarmband für Garmin Fenix 6 Pro/Sapphire,Fenix 5 Plus,Instinct: Amazon.de: Elektronik & Foto

Really nice and very good value for money.

Me too. Liking them but finding them a little less comfortable for 24/7 wear than other straps. 

I can vouch for these. They are excellent quality and very comfortable.

Yes. Great strap, cheap but good quality. Use iR for months, 24/7 without any problems.

i pay $1000 for a watch and garmin include a 5$ silicone band. 

I buy these Chinese parts with Quickfit adapters, but they are always too long, as described here: 

https://www-andrehotzler-de.translate.goog/de/blog/outdoor/102-garmin-fenix-welches-armband-fuer-die-fenix-soll-ich-kaufen.html?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=wapp#:~:text=Aus%20China%20habe%20ich%20mir%20verschiedene

Meanwhile, I buy them on Ebay and then take them to the tailor and have them shortened. Just cut through, put on top of each other and sew.

Looks maybe not super cool, but very comfortable, elastic and thanks to Quickfit I can switch to the original rubber band for sports.

The tape from the Enduro is but pointless "Kasperlekram". Too expensive, because the Velcro surfaces wear out, too impractical, because you have to open 2 sides to get it over the hand. With the China parts I solve only on one side and get the band over the hand.

Too bad that Garmin once again so simple things do not get on the row and since only offers trash.