For reference on pricing:

A very basic 5 port switch with 2.5Gbit ports - $90:

https://www.amazon.com/5-Port-Multi-Gigabit-Unmanaged-Entertainment-Network/dp/B0995S28PQ

A 16 port gigabit switch - $50:

https://www.amazon.com/Tenda-Unmanaged-Wall-Mount-Optimization-Protection/dp/B09F2T3PQ2/

A 4 port gigabit switch - $15:

https://www.amazon.com/Ethernet-Splitter-Optimization-Unmanaged-TL-SG105/dp/B00A128S24/

A *48* port gigabit switch - $100 - only slightly more than the FIVE port 2.5Gbit 5 port:

https://www.amazon.com/MokerLink-48-Gigabit-Rackmount-Unmanaged/dp/B0C53LCY65/

An eight port 2.5GBit switch - $130 - MORE than the 48 port gigabit switch, but with 1/8th the ports:

https://www.amazon.com/TRENDnet-2-5GBASE-T-Compatible-10-100-1000Mbps-TEG-S380/dp/B08XWKF55C/