For easier loading of filament, I remixed the Bondtech Prusa i3 MK2.5S / MK3S / MK3S+ extruder sensor cover to add a tapered tube for the filament loading hole.
Print with PETG as oriented - no supports.
Bondtech github part link ( Sensor Cover MK3s.STL ) - https://github.com/BondtechAB/Bondtech_Prusa_i3/tree/master/CAD-Files
Bondtech Extruder link- https://www.bondtech.se/product/prusa-i3-mk3s-extruder-upgrade/
The author remixed this model.