D&D 5E (2024) GMs: How long should it usually take to go from level 1 to 4?

[The Soloist]

During 2e, levelling with my groups was based on the number of sessions played. In the 90s, we were younger and played sessions of 5-6 hours, instead of 2-3 hours these days. But we only played once every three or four weeks. I gave them a level every three sessions (regardless of XPs, I stopped using them.)