The Nortrell timeline (it's not Mando, Mando is baby yoda's dad):

Max and Lando met 2010 or 2011, they were 11-12 when Max moved back to the UK after living in Singapore for some years. They were on the same kart team (RFM) so presumably spent considerable time together when they were preteens and teens (there are many photos out there of baby Max and Lando and they are very cute).

Lando climbed the junior ladder a lot faster than Max did. We can assume they stayed friends through these years even if they spent less time together due to not racing in the same series.

2020 happens, Lando is happy F1 driver, Max is very sad F3 driver but they stream some COD and it's beautiful. From the surviving clips there was some definite 'we're very close so some will interpret our banter as flirting'.

2021 THE YEAR OF NORTRELL. Max joins Quadrant officially on June 13th, moves in with Lando 'for a few weeks' during the summer (his parents were moving or having their house renovated) and then never leaves. The clothes sharing starts and just goes from 'huh isn't that Lando's hoodie?' to Max making public comments at Lando for stealing his clothes again but then also stealing Lando's clothes back (hoodies seem to be popular for Max whereas Lando is more shirts that are too small and joggers). Quadrant is subtly stoking the fire with tiktok gems such as Niran calling them mum and dad. Lando gatecrashing Max's streams and being a gremlin in the background, Max calling Lando 'my man/my papaya man' and saying he misses Lando when he's gone, whatever was going on with Lando cutting Max's food for him on the boat holiday, golf dates lots of golf dates, Lando doing Max's ironing for him, sharing a stream set up for ages and then having setups next to each other. At least one of their friends (Tom, maybe Jakey too) does seem ship them. Also they did go to Wembley together but we don't talk about Wembley.

Honestly any Quadrant video with them both in is a gem because they cannot stay away from each other and banter/flirt (at this point with the clothes sharing that extends to their shoes it's flirting) is a gem of Nortrell content.

Moves in with Lando 'for a few weeks' during the summer (his parents were moving or having their house renovated) and then never leaves. <- I've literally watched hallmark movies with the same premise lmaoooooo